As filed with the Securities and Exchange Commission on September 19, 2003
                                                     Registration No. 333-
                                                                          -----

                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    FORM S-3

                             REGISTRATION STATEMENT
                                      UNDER
                           THE SECURITIES ACT OF 1933

                          SORRENTO NETWORKS CORPORATION
             (exact name of registrant as specified in its charter)

        Delaware                         3672                  04-3757586
(State or other jurisdiction  (Primary Standard Industrial  (I.R.S. employer
     of incorporation          Classification Code Number)  Identification No.)
     or organization)

                               9990 Mesa Rim Road
                           San Diego, California 92121
                                 (858) 558-3960
          (Address, including zip code, and telephone number, including
                  area code, of registrant's principal offices)

                               PHILLIP W. ARNESON
                             Chief Executive Officer
                          Sorrento Networks Corporation
                               9990 Mesa Rim Road
                           San Diego, California 92121
                                 (858)-558-3960
            (Name, address, including zip code, and telephone number,
                   including area code, of agent for service)

                        Copies of all communications to:

                             W. RAYMOND FELTON, ESQ.
                Greenbaum, Rowe, Smith, Ravin, Davis & Himmel LLP
                            Metro Corporate Campus I
                              Post Office Box 5600
                          Woodbridge, New Jersey 07095
                                 (732) 549-5600

     Approximate date of commencement of proposed sale to the public: As soon as
practicable after this Registration Statement becomes effective.







     If the only securities being registered on this Form are being offered
pursuant to dividend or interest reinvestment plans, please check the following
box. [_]

     If any of the securities being registered on this Form are to be offered on
a delayed or continuous basis pursuant to Rule 415 under the Securities Act of
1933, other than securities offered only in connection with dividend or interest
reinvestment plans, check the following box. [X]

     If this Form is filed to register additional securities for an offering
pursuant to Rule 462(b) under the Securities Act, please check the following box
and list the Securities Act registration statement number of the earlier
effective registration statement for the same offering. [_]

     If this Form is a post-effective amendment filed pursuant to Rule 462(c)
under the Securities Act, check the following box and list the Securities Act
registration statement number of the earlier effective registration statement
for the same offering. [_]

     If delivery of the prospectus is expected to be made pursuant to Rule 434,
please check the following box. [_]

                         Calculation of Registration Fee



--------------------------------------------------------------------------------------------------
Title of each Class of                    Proposed Maximum
Securities to be         Amount to be    Offering price per       Aggregate          Amount of
Registered               Registered(1)        Share(2)        Offering Price(2)   Registration Fee
--------------------------------------------------------------------------------------------------
                                                                          
Common Stock, par
value $.001 per share      2,369,547           $2.69            $6,374,081.43         $515.66
--------------------------------------------------------------------------------------------------


----------
(1) Includes an indeterminate number of shares of common stock issuable to
prevent dilution resulting from stock splits, stock dividends or similar
transactions pursuant to Rule 416 under the Securities Act of 1933, as amended.

(2) Estimated pursuant to Rule 457 based upon the closing price of the common
stock on September 16, 2003 as reported on the Nasdaq National Market solely for
the purpose of computing the registration fee.

The Registrant hereby amends this Registration Statement on such date or dates
as may be necessary to delay its effective date until the Registrant shall file
a further amendment which specifically states that this Registration Statement
shall thereafter become effective in accordance with Section 8(a) of the
Securities Act of 1933 or until the Registration Statement shall become
effective on such date as the Securities and Exchange Commission, acting
pursuant to said Section 8(a), may determine.







                 SUBJECT TO COMPLETION DATED SEPTEMBER 19, 2003

                                   PROSPECTUS

                          Sorrento Networks Corporation
                                2,369,547 Shares
                                  Common Stock

     This prospectus relates to the resale, from time to time, by the selling
shareholders named in this prospectus, of 2,369,547 shares of our common stock.
We issued 1,374,194 of these shares to the selling shareholders at the closing
of our acquisition of LuxN, Inc., a Delaware corporation, which we acquired by
the merger of our wholly-owned subsidiary with and into LuxN on August 8, 2003.
We will issue approximately an additional 505,153 shares to the selling
shareholders upon receipt of our shareholders' approval. In addition, we issued
warrants to purchase approximately 400,000 of our shares of common stock at an
exercise price of $3.05 per share to the selling shareholders, and we are
registering the shares of our common stock that are issuable upon the exercise
of those warrants. We intend to issue 90,200 of the shares being registered
hereunder to one of our former employees, who also served as an officer and a
consultant, in settlement of his claims under his employment and consulting
agreements.

     We will not receive any of the proceeds from the sale of the shares sold
pursuant to this prospectus, and we will bear certain expenses incident to their
registration. The selling shareholders may sell the shares of common stock
described in this prospectus in a number of different ways and at varying
prices. The price to the public for the shares and the proceeds to the selling
shareholders will depend upon the market price of the securities when sold. See
"Selling Shareholders" and "Plan of Distribution""

     Our common stock is quoted on the Nasdaq National Market under the symbol
"FIBR." On September 16, 2003, the closing price for our common stock was $2.69.

     Investing in common stock involves risk. Before you invest, you should
consider carefully the "Risk Factors" beginning on page 12.

     Neither the SEC nor any state securities commission has approved or
disapproved these securities or passed upon the accuracy or adequacy of this
prospectus. Any representation to the contrary is a criminal offense.

     The date of this prospectus is September 19, 2003.







                                TABLE OF CONTENTS



                                                                            Page
                                                                            ----
                                                                           
THE COMPANY....................................................................3
OUR BUSINESS...................................................................4
RISK FACTORS..................................................................12
THE OFFERING..................................................................23
USE OF PROCEEDS...............................................................23
SELLING SHAREHOLDERS..........................................................23
PLAN OF DISTRIBUTION..........................................................25
DESCRIPTION OF OUR COMMON STOCK...............................................27
WHERE YOU CAN FIND MORE INFORMATION...........................................27
FORWARD LOOKING INFORMATION...................................................28
LEGAL MATTERS.................................................................29
EXPERTS.......................................................................29
DISCLOSURE OF COMMISSION POSITION ON INDEMNIFICATION FOR SECURITIES ACT
   LIABILITIES................................................................29


                                       2







                                  THE COMPANY

     We are a leading supplier of intelligent optical networking solutions for
metropolitan and regional applications worldwide. Our solutions enable
communication carriers and service providers to offer broadband networking
services over optical fibers for metropolitan and regional applications. Our
technologies permit telecommunications service providers to increase fiber
capacity and fiber bandwidth utilization, reduce network costs and complexity
over scalable and efficient networking platforms. Our optical networking systems
support a wide variety of protocols, mixed speeds of traffic and accommodate
changing traffic patterns directly over optical networks.

     Our product solutions include optical access, optical transport, and
network management solutions optimized for metro and regional markets, and
combine to create powerful, cost-effective, and easy-to-manage optical networks.
Our dense wavelength division multiplexing, or DWDM, and course wavelength
division multiplexing, or CWDM, platforms can be used in both metropolitan and
regional network applications. DWDM technology allows many optical signals to be
transmitted simultaneously on the same optical fiber by using different
wavelengths of light to distinguish the signals. This technology increases
optical network capacity and flexibility.

     Our comprehensive suite of optical networking interfaces and optical access
multiplexers allows us to also address broadband applications in the optical
access market including data center fail-over recovery, storage area networking
and internet connectivity applications. Our introduction of a CWDM product is a
lower cost, entry level solution that can be used for enterprise and carrier
customer access that complements our DWDM product line. Multiplexing is a
process that combines a number of lower speed data transmissions into one
high-speed data transmission.

     We also have two powerful network management solutions for our DWDM product
line. Addressing all key management aspects - fault, configuration, performance,
and security - these systems conform to North American and international
standards and are simple to learn and use. We have a robust, carrier-class
management system that offers broad functionality, including
equipment/facilities management, fault management, performance monitoring,
security control, alarm filtering, and remote download. We also have an
enterprise network management solution that provides an intuitive graphical
interface and covers operations, administration, maintenance, and provisioning
functionality for our DWDM networks.

     We currently have an installed base with over 20 communications service
providers and system integrators worldwide, including AT&T Broadband, now
Comcast Corporation, Deutsche Telekom, Cox Communications, United Pan-Europe
Communications, El Paso Global Networks and Edison Carrier Solutions.

     Our shares of common stock are traded on the Nasdaq National Market under
the symbol "FIBR."

     Our principal executive offices are located at 9990 Mesa Rim Road, San
Diego, California 92121. Our telephone number is (858) 558-3960. Our website is
sorrentonet.com. We do not intend the information found on our website to be a
part of this prospectus.


                                       3







                                  OUR BUSINESS

Understanding Our Market

Rapid Growth in Bandwidth Demand

     Fueled by the growth of the Internet, the volume of data traffic
transmitted across telecommunications networks now exceeds voice traffic. The
growth of data traffic is attributable to increased Internet usage, increased
access speeds and greater use of bandwidth intensive applications. Bandwidth
means the capacity to move information down a communications channel. Bandwidth
is defined by the highest data rates that can be transmitted by that channel and
is commonly measured in bits per second. According to Ryan, Hankin & Kent,
Internet traffic is projected to increase at a rate exceeding 40% per year for
the next five years.

Migration of Network Infrastructure

     Traditional copper-based and SONET/SDH based telecommunications
infrastructures were originally designed for voice traffic. These
infrastructures do not scale effectively to provide the bandwidth needed to
support the growth in high-speed data traffic. In addition, these
infrastructures need network-wide upgrades in order to accommodate growing
traffic thus resulting in long delays for provisioning new services.

     DWDM and CWDM technologies are more flexible, more efficient and more
scalable networking alternatives for meeting the growing demand for bandwidth
and new broadband services. Broadband means technologies or networks that have
the ability to transmit high data rates. DWDM means dense wavelength division
multiplexing, which is a sophisticated opto-electronics technology that uses
multiple wavelengths of light very efficiently to greatly increase the number of
video, data or voice channels of information that can be sent on a single
optical fiber. SONET means a transmission protocol for high-speed transmission
over fiber optic cable, which was introduced by Bell Communications in 1984 and
quickly accepted by American National Standards Institute. SDH means Synchronous
Digital Hierarchy, which is transmission protocol for high-speed transmission
over fiber optic cable published in 1988 by the Consultative Committee for
International Telegraph and Telephony. It is a transmission protocol used
outside the United States that is similar to SONET.

     DWDM networks for long-haul applications were the first to be deployed, and
optical solutions specifically designed to address the challenges faced by
metropolitan markets have significantly lagged in deployment. Accordingly, metro
networks are considered to be traffic bottlenecks in the fast and efficient
transmission of data.

Enhanced Competition in the Service Provider Market

     Worldwide deregulation in the telecommunications industry has led to an
increase in the number of service providers seeking to address the growing
demand for bandwidth. In the U.S. and internationally, traditional service
providers such as incumbent local exchange carriers (ILECs), inter-exchange
carriers (IXCs) and post, telephone and telegraph companies (PTTs) are seeing
new entrants in the broadband networking market seeking to capitalize on the
growing demand for bandwidth. A number of competitors to these incumbents are
building new data-


                                       4







centric networks to address the present bandwidth bottlenecks in the
metropolitan markets, including utilities and cable television companies which
are upgrading their current networks and are leveraging existing investments in
fiber optic infrastructure to deliver high-speed data services in both the local
and regional markets. This enhanced competition in the carrier and service
provider markets is driving increased capital expenditures on network
infrastructure that is focused on delivering scalable high-speed data services
in a cost efficient manner.

Network Topography

     The following describes each of the network segments within the optical
network hierarchy:

     o    Long-haul networks are high capacity networks that connect service
          providers and carry voice and data across large geographic regions,
          typically spanning distances up to 4,000 kilometers. Long-haul
          networks are relatively simple networks, built around SONET/SDH
          technology and are primarily designed only to satisfy service provider
          long haul network capacity requirements.

     o    Metropolitan core (metro-core) networks connect the central offices of
          service providers in a metropolitan area and facilitate the transport
          and switching of traffic within extended metropolitan areas and
          between the network edge and long-haul networks. Metropolitan core
          networks are typically implemented in ring configurations and reach
          ring circumferences up to 300 kilometers. In order to efficiently use
          the optical network, sub-rate multiplexing devices aggregate traffic
          into wavelengths carrying higher speed aggregate bit rates across
          telecommunications networks. Regional networks typically transport
          voice and data traffic between cities across distances of 200 to 600
          kilometers or more.

     o    Access networks connect enterprises or traffic aggregation nodes, in
          multiple locations throughout metropolitan areas, to service
          providers' central offices or connect different end-user locations to
          each other. In order to efficiently use the optical network, optical
          access devices aggregate traffic from end users into wavelengths or
          wavelength bands for transport across telecommunications networks.
          Because access networks must support the varying demands of end users,
          these networks tend to be very complex.

Metropolitan Area Optical Network Opportunity

     Although optical technologies are being deployed in long-haul networks to
relieve capacity constraints, these solutions are not specifically designed to
address the issues inherent in metropolitan and regional optical networks. Data
is normally mapped into the voice multiplexing hierarchy for transport over the
long-haul network. Metropolitan optical networks are characterized by varying
traffic patterns and protocols as well as varied topologies and end-user
requirements, making them more complex and difficult to manage than long haul
networks. As a result, service providers have only recently begun to exploit the
benefits of optical technologies in metropolitan optical networks.

     The optical networking market has seen a substantial downturn beginning in
2002 from 2001 levels. The metro WDM market, which was expected to increase, has
also experienced a


                                       5







slowdown as capital spending has declined throughout the telecommunications
industry. Although we believe that the metro WDM world-wide market will grow
significantly in the years to come, such growth is not likely to occur until
capital spending resumes in the markets we serve, and we are unable to assess at
present when this might take place. According to industry analysts, including
Ryan, Hankin and Kent and others, the metro WDM market in 2001 was about $1.2
billion worldwide and is expected to grow to $3.6 billion by 2005.

Regional Optical Network Opportunity

     In addition to the metropolitan market, recent engineering enhancements
have permitted the use of DWDM networking platforms for regional optical
networking applications. This development opens up the opportunity to address a
portion of the substantial long haul market. In some regions, e.g., Europe,
regional solutions apply to the majority of the networks installed. Industry
researchers recently started looking at reclassifying the regional market
opportunity, although statistical data for this market are not available.

Specific Challenges Facing Metropolitan Optical Networks

     Service providers face numerous specific challenges in addressing
metropolitan and regional optical networks:

     o    Scalability Limitations. Originally constructed for voice traffic, the
          current network infrastructure based on SONET/SDH technology does not
          allow for the network efficiencies necessary to address the shift to a
          predominantly data-driven network. Due to its inherent lack of
          scalability, the current network infrastructure may require service
          providers to undertake the expensive and tedious process of replacing
          network equipment or adding new layers of similar equipment in
          response to changes or increases in bandwidth demand. Alternative
          approaches to WDM are being developed by other vendors to address the
          scalability of the SONET/SDH networks. These nonstandard solutions are
          called next generation SONET/SDH and can minimize the wasted bandwidth
          of legacy SONET/SDH. While these solutions allow carriers to combine
          voice and data on the same network, such solutions do not, however,
          expand the amount of bandwidth available and are, therefore, unable to
          accommodate the need for large amounts of bandwidth.

     o    Need to Support Multiple Protocols. Metropolitan optical networks are
          characterized by a wide variety of protocols. The inability to support
          multiple protocols and services from a single platform further
          increases the cost and complexity of the metropolitan networks.
          Alternative approaches to WDM are being developed by other vendors to
          address the requirement for support of multiple services. These
          nonstandard solutions are called multi-service provisioning platforms.
          These solutions generally carry out protocol conversions and are much
          more complex than WDM solutions.

     o    Market Downturn. Virtually all telecom related market segments have
          suffered a decline in demand in the current economic downturn. What
          was once viewed as only a long-haul decline in market demand has now
          affected the regional and metropolitan networks as both enterprise and
          carrier business have cut back capital spending. Although we expect
          that demand in the regional and metropolitan markets will be


                                       6







          strong in future periods, there are no assurances that capital
          spending will resume within this sector in the near term.

     o    Several Stages of Conversion. Present solutions require several
          conversions to transport data through a metropolitan network. In the
          access networks, aggregation of traffic often requires protocol
          conversions into a common protocol before optical transmission. In the
          central office, data is often demultiplexed and converted into
          electrical signals for regeneration, switching or further aggregation
          into higher capacity links and then reconverted into optical signals
          for transmission in the metro-core network.

     o    Inefficient Bandwidth Utilization. Within metropolitan optical
          networks, service providers must cater to end-users with varying
          access speeds. Current optical access solutions do not make efficient
          use of scarce wavelength resources. Service providers must assign a
          full wavelength to each signal, whether or not the end-user requires
          the full bandwidth potential of each wavelength.

     o    Difficulty of Network Management. Multiple protocols and services,
          coupled with the lack of standards that exist in metropolitan optical
          networks, make network management functions, such as performance
          monitoring and configuration, exceedingly difficult. Lack of a robust
          network management platform further adds to the cost and complexity of
          metropolitan optical networks.

     o    Need for New, Enhanced Service Offerings to Generate New Revenue
          Opportunities. Service providers are searching for next-generation
          solutions that will enable them to generate additional sources of
          revenue from offering new or enhanced services to their customers.
          Current solutions typically require the service provider to deploy
          equipment that is specifically designed for a particular service and
          transmission rate. Next-generation solutions must be able to offer
          enhanced features, wavelength provisioning and bandwidth-on-demand,
          that end-users will increasingly request from service providers.

Our Solution

     Our solutions feature products designed to specifically address the
shortcomings of legacy SONET/SDH networks and to facilitate offering new
services throughout metropolitan and regional optical networks. We enable our
customers to meet the rapidly growing demand for bandwidth by offering
end-to-end metropolitan and regional optical networking solutions for the
aggregation, transport and management of traffic. Our current products,
including our GigaMux'r' DWDM transport system, our EPC'TM' sub-rate
multiplexing modules, our JumpStart'TM' CWDM transport system, as well as the
network management product line that includes GigaView'TM', TeraManager'TM' and
TeraConfigurator'TM', are specifically designed to meet the unique requirements
of the metropolitan and regional markets.

     Our optical networking solutions offer numerous benefits including:

     o    Cost Effective Entry-Level Access Solution. Our Jumpstart CWDM
          platform allows low cost multiplexing of up to four wavelengths
          carrying a mix of protocols and signals for access applications. CWDM
          means coarse wavelength division


                                       7







          multiplexing, which is a sophisticated opto-electronics technology
          that uses multiple wavelengths of light to increase the number of
          video, data or voice channels of information that can be sent on a
          single optical fiber.

     o    Scalable Architecture. We have created an optical networking solution
          that simultaneously transmits voice, data, and video over optimized
          fiber channels. The modular architecture of our solution enables
          service providers to incrementally expand capacity as their bandwidth
          needs increase. This simple, scaleable, and functional solution solves
          short and long-term service provider problems, which enhances their
          ability to reduce costs and offer value-added services. For example, a
          service provider can begin deployment with a single channel and later
          expand up to 64 channels, providing up to 640 gigabits per second, or
          Gbps, of transmission capacity without interrupting existing traffic.
          A fiber channel is a serial data transfer architecture standard
          conceived for new mass storage devices and other peripheral devices
          that require very high bandwidth connections. Bit rates for fiber
          channels are either 1.06 Gbps or 2.1 Gbps.

     o    Protocol and Signal Transparency. Our suite of solutions transports a
          mix of protocols and signals, including SONET/SDH, Asynchronous
          Transfer Mode (ATM) over SONET, Internet Protocol (IP) over SONET,
          Gigabit Ethernet, Fibre Channel and Enterprise System Connectivity in
          their native formats over numerous wavelengths in the same fiber. This
          transparency provides operational simplicity in that the service
          provider can offer networking connectivity without having to worry
          about protocol conversions. This is particularly important in
          metropolitan areas where multiple protocols are utilized and data
          transmission rates change often. The transparency of our solution
          eliminates the unnecessary conversions from optical to electrical and
          back to optical, as well as eliminates several layers of equipment
          that would otherwise be required in the transport and switching of
          traffic, thus reducing network complexity and signal latency.

     o    Protocol Aggregation. Our EPC'TM' optical access multiplexer
          aggregates traffic, of varied rates utilizing a wavelength per
          direction of transmission, from businesses and network points of
          presence for transport throughout optical networks. This aggregation
          allows better utilization of wavelengths and lowers capital
          expenditures of telecom service providers by reducing investments in
          excess network capacity.

     o    Manageability. The design of our end-to-end optical networking
          solution will allow service providers to perform network management
          from a single platform with our TeraManager'TM' product. This
          intelligent optical network element management software platform
          provides fault, configuration, performance, and security management
          utilizing an easy-to-use graphical user interface that allows point
          and click network provisioning and monitoring.

     o    Regional Optical Transport. Our solution permits service providers to
          expand beyond the confines of metropolitan networks using the same
          platform for metropolitan and regional applications. Regional networks
          can now be built using the lower cost solutions developed for the
          metropolitan environment.


                                       8







Our Strategy

     Our objective is to become a leading supplier of intelligent optical
networking solutions for metro and regional applications worldwide. The key
elements of our strategy are to:

     o    Enhance and complete our metropolitan/regional optical networking
          solutions

          We intend to continue to enhance our existing family of metropolitan
     and regional optical networking products and to introduce new products that
     increase the functionality of our end-to-end optical solution. We
     introduced TeraManager'TM' and TeraConfigurator'TM' in our management
     solution portfolio in fiscal 2002. We also introduced JumpStart'TM', our
     CWDM solution, in fiscal year 2002. The combination of our GigaMux'r'
     optical transport products, with the EPC'TM' sub-rate multiplexer, the
     JumpStart'TM' CWDM, and TeraManager'TM', our carrier class network
     management product, creates an intelligent all-optical transport solution.

     o    Leverage our engineering leadership

          We intend to leverage our engineering expertise in the areas of
     optical, mechanical, electrical and network management design to continue
     to provide leading end-to-end metropolitan and regional optical networking
     systems and to expand our market share. We believe we were the first
     company to commercially ship a metropolitan optical networking product
     using DWDM technology. As of July 31, 2003, we had a skilled team of 29
     engineers that continually focus on developing products for the
     metropolitan and regional optical transport market. We believe that our
     technological leadership has been the key to our success and will enable us
     to rapidly develop new product offerings and end-to-end optical solutions
     for the metropolitan and regional markets.

     o    Allow our customers to leverage their fiber assets by offering
          revenue-generating services

          The majority of our existing customers and targeted customers have a
     large amount of fiber assets in the metropolitan and regional network
     infrastructure. We intend to continue to develop and provide solutions that
     will enable our customers to leverage their existing fiber infrastructure
     to deliver revenue-generating services, while reducing their overall
     network costs. In addition, we believe our existing customer base provides
     us with an advantage when competing for new customers. We intend to
     continue to work closely with our customers and invest in sales and
     marketing resources to maintain our high level of customer service and
     remain responsive to our customers' changing needs.

     o    Aggressively pursue expense reduction initiatives

          We continue to aggressively pursue cost reduction initiatives to bring
     our expenses in line with current and future anticipated revenues. Such
     reductions may affect the size of our workforce, and may require decreasing
     our operating expenses and capital spending. During the past two fiscal
     years we have concentrated on implementing initiatives that have lowered
     our operating costs and anticipate the need for continued cost reductions
     if sales volume does not increase in the near future.


                                       9







     o    Maintain our sales, service and support organizations worldwide

          We intend to continue to market our products worldwide. We currently
     have sales, service and support teams in North America, Europe and Asia. We
     believe that sales, service and support efforts on a customer-by-customer
     basis are most effective due to the technical evaluation and significant
     investments that are made by our customers.

     o    Expand our product and customer base through careful acquisitions

          We intend to expand our addressable market by adding "best-of-breed"
     optical access products to our metro/regional portfolio and enhance our
     edge-to-core network offerings. The recent of acquisition of LuxN, Inc., is
     a prime example of such expansion. LuxN supplies optical access equipment
     for the network edge using CWDM and DWDM technology. LuxN's
     OSMINE-certified products enable delivery of high-bandwidth data, storage,
     video, and voice services for service providers, cable MSOs, and
     enterprises. Our union with LuxN broadens our 30-plus blue-chip customer
     base by adding over 20 new customers including Time Warner Telecom, Hawaii
     I-Net, Yipes Enterprise Services, and numerous universities.

Products

     Our family of optical networking systems is designed to provide our
customers with end-to-end solutions for the metropolitan and regional optical
networking markets. Our transport, access, switching and network management
systems include the following products, some of which are still in development.

GigaMux'r' -- DWDM Optical Transport

     Our GigaMux'r' optical transport product utilizes DWDM technology to expand
the capacity of new and existing fibers and enable traffic to travel throughout
metropolitan optical networks without optical to electrical to optical
conversions at each intermediate node. Our GigaMux'r' features wavelength
translation, wavelength multiplexing, optical amplification, optical add-drop
multiplexing, protection switching and performance monitoring. The scalable and
modular architecture of our GigaMux'r' product enables service providers to
easily and cost-effectively expand their existing networks as bandwidth
requirements increase. GigaMux'r' can simultaneously transport multiple
protocols bi-directionally over one or more fibers, which reduces the cost and
complexity of the network. As part of our focus on video-on-demand transport, we
recently introduced a 10-port Gigabit Ethernet multiplexer for GigaMux'r'
metro/regional DWDM system targeted at the cable multi-system operator
community.

     Our GigaMux'r' product is Network Equipment Building Standards; or NEBS,
level III certified. As of July 31, 2003, we have shipped our GigaMux'r' product
to over 20 direct carrier customers or resellers worldwide. Our GigaMux'r'
product includes the following key features:

     o    Scalability: the system can grow from 1 to 64 protected channels (640
          Gbps/fiber) without a major upgrade or service interruption.


                                       10







     o    Protocol transparency: the system can aggregate and transport
          SONET/SDH (OC-3/STM-1 through OC-192/STM-64 carrying voice, IP or ATM
          traffic), ESCON, Fibre Channel, Fast Ethernet, Gigabit Ethernet and
          video.

     o    Modular protection: the system's modular protection system allows
          redundancy to be implemented at any point in the network.

     o    Add/drop channels: the system is equipped with add/drop modules that
          allow specific channels to be added or dropped while all other
          channels pass through. Our filter subsystem can add or drop from
          single channels to larger wavelength bands.

     o    Reach: Up to 600 kilometers with optical amplifiers and up to 1000 km
          with the addition of dispersion compensation.

EPC'TM' - Sub-Rate Access Multiplexes

     Electric Photonic Concentrator, or EPC'TM', is our sub-rate access
multiplexer product that aggregates a wide variety of traffic from businesses
and network points of presence for high-speed transport throughout optical
networks. The traffic is aggregated and effectively shares a wavelength per
direction of transmission and can be ported directly into the DWDM stage of our
GigaMux'r'. EPC'TM' is designed to lower the cost and increase the efficiency of
bandwidth delivery within optical networks.

     Our EPC'TM' products include the following key features:

     o    Support for asynchronous or synchronous (SONET/SDH) time division
          multiplexing of data

     o    Provisionable bit rates and protocol and overhead transparency

JumpStart'TM' - CWDM Transport

     JumpStart'TM' is our entry level solution for multiplexing up to 4
bi-directional data channels using coarse wavelength division multiplexing
technology on a single fiber. The product is very compact and can be stacked to
provide additional capacity - 4 channels per fiber.

TeraManager'TM' -- Element Management System

     TeraManager'TM' is our TLl-based intelligent element management software
platform that provides fault, configuration, performance and security management
for all the Sorrento networks products and for networks built with such
products. Service providers can operate our network management platform through
an easy-to-use graphical user interface, which gives users a complete network
view and enables point and click provisioning and monitoring.

     Our TeraManager'TM' product includes the following features:

     o    Fault, configuration, security and performance management

     o    Carrier class performance


                                       11







     o    Interface with higher layer operation support systems

Meret Optical Communications

     Our optical networking subsidiary, Meret Communications, Inc., doing
business as Meret Optical Communications, also markets our new CWDM product, as
well as feature-rich video transport and switching, radio frequency, or RF,
transmission, and RF synthesis products.

                                  RISK FACTORS

We have substantial debt, and we may not generate sufficient cash flow to meet
our debt service obligations.

     Our total debt consists primarily of approximately $13.1 million principal
amount of 7.5% debentures with a maturity date in August 2007, and mortgage debt
of approximately $3,630,000. The amount of our debt could have important
consequences, including:

     o    impairing our ability to obtain additional financing for working
          capital, capital expenditures, acquisitions or general corporate
          purposes;

     o    requiring us to dedicate a substantial portion of our operating cash
          flow to paying principal and interest on indebtedness, thereby
          reducing the funds available for operations;

     o    limiting our ability to grow and make capital expenditures due to the
          financial covenants contained in our debt arrangements;

     o    impairing our ability to adjust rapidly to changing market conditions,
          invest in new or developing technologies, or take advantage of
          significant business opportunities that may arise;

     o    placing us at a competitive disadvantage compared to our competitors
          that have less debt; and

     o    making us more vulnerable if the current general economic downturn
          continues or if our business experiences difficulties.

     If we cannot generate sufficient additional revenue, we may not be able to
meet our debt service obligations, repay our debt when due, or comply with other
covenants in the 7.5% debentures. If we breach the 7.5% debentures, the holders
could require repayment of all amounts owed, and we would not have sufficient
cash reserves to repay such amounts.

We may be unable to raise the funds necessary to repay or refinance our
indebtedness.

     We are obligated to make principal and interest payments on the 7.5%
debentures each year until 2007, when the 7.5% debentures mature. Although under
certain circumstances we may pay interest in shares of our common stock or in
additional 7.5% debentures, this obligation generally requires significant
amounts of liquidity. We will need additional capital to fund this


                                       12







obligation. Our ability to arrange financing and the cost of this financing will
depend upon many factors, including:

     o    general economic and capital markets conditions generally, and in
          particular the non-investment grade debt market;

     o    credit availability from banks or other lenders;

     o    investor confidence in the telecommunications industry generally and
          our company specifically; and

     o    provisions of tax and securities law that are conducive to raising
          capital.

     If we need additional funds and are unable to raise them, our inability to
raise them will have an adverse effect on our operations. If we decide to raise
additional funds by incurring debt, we may become subject to additional or more
restrictive financial covenants and ratios.

A significant number of shares of our common stock issued in connection with the
restructuring transaction we undertook in June 2003 may be sold in the market in
the near future. This could cause the market price of our common stock to drop
significantly, even if our business is doing well.

     Pursuant to the restructuring transaction we undertook in June 2003 with
the former holders of our subsidiary's Series A Preferred Stock and our then
outstanding 9.75% Senior Convertible Debentures, we registered for resale
15,000,000 shares of our common stock that were issued and are issuable or
potentially issuable in connection with the restructuring transaction. As part
of the restructuring transaction, we issued an aggregate principal amount of
$13.1 million of 7.5% convertible debentures, which are convertible into
approximately 2,416,975 shares at a conversion price of $5.42. Sales of a
substantial number of shares of our common stock within any narrow period of
time could reduce the market price of our common stock unless and until we
achieve revenue growth or cost savings and other business economies sufficient
to offset the effect of this issuance. We cannot assure you that we will achieve
revenue growth, cost savings or other business economies.

We may not be able to obtain the additional financing we anticipate we will need
in the near future to continue our business.

     We will need additional funds to support operations in the near future in
order to continue to enhance and expand our product offerings and to increase
our market share in the regional and metropolitan marketplace. If we are unable
to obtain new investment, we may have to reduce or cease operations, or attempt
to sell some or all of our operations or to merge with another entity. We cannot
be sure that we will be able to obtain this new financing.

     The further development of our products as well as the expansion of
manufacturing capabilities or the establishment of additional sales, marketing
and distribution capabilities will likely require the commitment of substantial
funds. Our existing working capital may not be sufficient to meet these
expansion plans. Potential sources of additional funds include public or private
offerings of debt or equity securities, bank lines of credit or extensions of
existing arrangements by us. Additional financing may not be available on terms
favorable to us, or at all.


                                       13







Insufficient funds may require us to delay, scale back or eliminate certain
product development programs, or attempt to merge with another entity or
otherwise reduce or cease operations. We also expect that, as a result of the
slowdown in capital spending in the optical networking and telecommunications
industries, we will need to continue to reduce our expenses in the near future
to bring them in line with reduced revenues in order to conserve our working
capital. Moreover, without adequate financing, potential customers who otherwise
would select our products to purchase may decide to buy from other vendors whom
the customers perceive to have greater financial stability.

We have a history of losses and expect to incur future losses.

     We have incurred operating losses during the years ended January 31, 2003,
2002 and 2001 of $31.3 million, $37.2 million and $50.4 million, respectively,
and as of January 31, 2003, we had an accumulated deficit of $187.5 million. We
expect to continue to incur losses in the future. If we do not become
profitable, the value of our stock will decrease. We have large expenses in the
areas of sales and marketing, research and development, manufacturing, and
general and administrative expenses that are not covered by our current sales
volume and resulting gross margin. Currently, the majority of revenues are from
shipments of our optical networking product lines. In order for us to become
profitable, we will need to generate and sustain higher revenue, improve our
gross margins on products while maintaining reasonable expense levels.

     In addition, we have incurred, and continue to incur, extraordinary and
extremely high legal expenses in connection with our capital restructuring and
defense of legal claims against us brought by prior officers, directors or other
personnel claims. These expenses have depleted our existing working capital. If
we continue to incur such expenses, our existing working capital may be depleted
sufficiently that our business may be seriously harmed. We cannot assure you
that we will be able to reduce such costs in the immediate future.

Our history of losses and future losses could have an impact on our ability to
finance our business and risk our ability to continue operating.

     We have incurred significant losses and may incur significant losses in the
future. Such losses could cause our equity balance to fall below necessary
levels so that we are in violation of minimum listing requirements for our
publicly traded stock on the Nasdaq National Market, which could cause
significant decline in shareholder value and stock price.

Your percentage of ownership and voting power, and the price of our common stock
may decrease because we may issue a substantial number of shares of common
stock, or securities convertible or exercisable into our common stock.

     We have the authority to issue up to one hundred fifty million shares of
our common stock and two million shares of our preferred stock without
shareholder approval. We have also issued warrants to our shareholders of record
as of May 28, 2003, which will be exercisable to purchase approximately 600,000
shares of our common stock, and to certain of the selling shareholders named
herein, which will be exercisable to purchase approximately 400,000 shares of
our common stock.


                                       14







     We may also issue additional warrants and options to purchase shares of our
common stock. These future issuances could be at values substantially below the
price paid for our common stock by current shareholders. We may conduct
additional future offerings of our common stock, preferred stock, or other
securities with rights to convert the securities into shares of our common
stock, which may result in a decrease in the value or market price of our common
stock. Further, the issuance of preferred stock could have the effect of
delaying, deferring or preventing a change of ownership without further vote or
action by the shareholders and may adversely affect the voting and other rights
of holders of common stock.

Our industry is highly competitive, and we may not have the resources required
to compete successfully.

     The market for optical networking equipment is extremely competitive. We
expect competition to intensify in the future. Our primary sources of
competition include vendors of optical networking and infrastructure equipment
such as CIENA Corporation, Cisco Systems, Lucent Technologies, Nortel Networks,
Sycamore Networks, and ADVA AG Optical Networking as well as private companies
that have been or will be focusing on our target markets. The competitors for
Meret's legacy products-include Pesa, Artel, RGB Spectrum, Utah Scientific, and
many other companies. We may also face competition from a number of other
companies that have announced plans for new products to address the same network
problems that our products address. Many of our current and potential
competitors have significantly greater sales and marketing, technical,
manufacturing, financial and other resources than we do. Our competitors also
may have more extensive customer relationships than us, including relationships
with our current and potential customers. If we are unable to compete
successfully against our current and future competitors, we could experience
pricing pressures, reduced gross margins and order cancellations, any one of
which could seriously harm our business.

Our business may be seriously harmed if the market for optical networking
products in metropolitan and regional areas does not develop as we expect.

     Our current and future product offerings are focused on the needs of
providers that service regional and metropolitan areas. The market for optical
networking products in regional and metropolitan areas is not yet mature, and we
cannot be certain that a feasible market for our products will develop or be
sustainable. In addition, the market has suffered a cutback in capital spending
from both enterprise and cattier customers as a result of poor economic
conditions. If this market does not develop, or develops more slowly than we
expect or continues to be impacted by the reduction in capital spending, our
business may be seriously harmed. Furthermore, the optical networking industry
is subject to rapid technological change, and newer technology or products
developed by others could render our products less competitive or obsolete. In
developing our products, we have made, and will continue to make, assumptions
about the optical networking standards that our customers and competitors may
adopt. If the standards adopted are different from those which we have chosen to
support, market acceptance of our product would be significantly reduced and our
business will be seriously harmed.

Our future growth depends on our ability to attract new customers, and on our
customers' ability to sell additional services to their own customers.

     Most of our potential customers evaluate optical networking products for
deployment in large telecommunications systems that they are installing. There
is only a relatively limited


                                       15







number of potential customers for our products. If we are not selected by a
potential customer, our revenues and ability to grow our business may be
seriously harmed. Similarly, our growth depends on our customers' success in
selling communications services based on our products and complementary products
from others. Our success will depend on our ability to effectively anticipate
and adapt to customer requirements and offer products and services that meet
customer demands. Any failure of our current or prospective customers to
purchase products from us for any reason, including a downturn in their
business, would seriously harm our ability to grow our business.

If we fail to establish and successfully maintain strategic alliances, long-term
contracts and relationships with distributors and system integrators, our
ability to grow and be profitable may be seriously harmed.

     Strategic alliances and long-term contracts are an important part of our
effort to expand our sales opportunities and technological capabilities. To
date, we have entered into strategic alliances with AT&T Broadband, now Comcast
Corporation, United Pan-Europe Communications, INRANGE, and Looking Glass. In
addition we have a long-term contract with Cox Communications. We cannot be
certain that our existing alliances and long-term contracts will not be
cancelled or that we will be able to enter additional strategic alliances on
terms that are favorable to us. With the exception of two agreements we recently
entered into with TCI Network Solutions, Inc., d/b/a AT&T Broadband Network
Solutions, and UFO Communications, Inc., our agreements to date with our
strategic allies are non-exclusive, and we anticipate that future agreements
will also be on a non-exclusive basis. These agreements are generally short
term, have no minimum financial commitments on either side and can be cancelled
without significant financial consequence. In addition, we cannot be certain
that our existing and any future strategic alliances will be successful. As we
expand internationally, we will increasingly depend upon distributors and system
integrators. Our ability to grow and be profitable may be seriously harmed if we
fail to establish and maintain strategic alliances, long-term contracts and
relationships with distributors and system integrators. Our five-year agreement
with AT&T Broadband Network Solutions provides that we will be AT&T Broadband
Network Solutions' exclusive supplier, subject to certain exceptions, of dense
and course wavelength division multiplexing equipment. We also recently
contracted with UFO to be its exclusive supplier of equipment, subject to
certain exceptions, for networks owned, leased or operated by UFO.

We rely on a small number of customers for most of our revenues and any loss,
cancellation, reduction or delay in sales to, or collections from, any single
customer could seriously harm our business.

     Our customer base is highly concentrated. Historically, orders from a
relatively limited number of customers accounted for most of our net sales. For
the fiscal year ending January 31, 2003, five customers accounted for 84% of net
sales, during the fiscal year ended January 31, 2002, five customers accounted
for 62% of net sales and in fiscal year 2001 five customers accounted for 44% of
our net sales. We expect that, for the foreseeable future, sales to a limited
number of customers will continue to account for a high percentage of our net
sales. We currently do not have any long-term purchase commitments with any of
our customers, and we are subject to the varying purchase cycles of our
customers. Our concentrated customer base significantly increases the credit
risks associated with slow payments or non-payments by our customers. The loss
or delay of orders or slow or non-payment from, any of our largest customers
could adversely impact our business.


                                       16







Our backlog at any point may not be a good indicator of expected revenues.

     Our backlog at the beginning of each quarter typically is not sufficient to
achieve expected sales for the quarter. To achieve our sales objective, we are
dependent upon obtaining orders during each quarter for shipment during that
quarter. Furthermore, our agreements with our customers typically provide that
they may change delivery schedules and cancel orders within specified times
which are typically 30 days or more prior to the scheduled shipment date,
without significant penalty. Our customers have in the past built, and may in
the future build, significant inventory in order to facilitate more rapid
deployment of anticipated major projects or for other reasons. Decisions by such
customers to reduce their inventory levels have led and could lead to reductions
in purchases from us. These reductions, in turn, have and could cause
fluctuations in our operating results and have had and could have caused an
adverse effect on our business, financial condition and results of operations in
periods in which the inventory is reduced.

Our operating results are likely to fluctuate significantly and may fail to meet
or exceed the expectations of securities analysts or investors, causing our
stock price to decline.

     Our revenues and operating results may vary significantly from quarter to
quarter and year to year due to a number of factors, many of which are outside
of our control and any of which may cause our stock price to fluctuate. Some of
the factors that may affect us include changes in market demand for our optical
networking products, the cost and availability of components used in our
products, the timing and amount of customer orders, the length and
unpredictability of the sales and deployment cycles of our products, the timing
of new product introductions and enhancements by our competitors and ourselves,
changes in our pricing or the pricing of our competitors, our ability to attain
and maintain production volumes and quality levels of our products, and general
economic conditions as well as those specific to the telecommunications and
related industries.

If we are unable to comply with regulations affecting our customers' industries,
our revenues may be seriously harmed.

     Our customers are involved in industries that are subject to extensive
regulation by domestic and foreign governments. If we fail to conform our
products to these regulatory requirements, we could lose sales and our business
could be seriously harmed. Additionally, any failure of our products to comply
with relevant regulations could delay their introduction and require costly and
time-consuming engineering changes.

The time that our customers and potential customers require for testing and
qualification before purchasing our products can be long and variable, and may
require us to invest significant resources without any assurances of sales,
which may cause our results of operations to be unpredictable.

     Before purchasing our products, potential customers typically undertake a
lengthy evaluation, testing and product qualification process. In addition,
potential customers often require time consuming field trials of our products.
Our sales effort requires the effective demonstration of the benefits of our
products to, and significant training of, potential customers. In addition, even
after deciding to purchase our products, our customers may take several years to
deploy our products. The timing of deployment depends on many factors, including
the


                                       17







sophistication of a customer and the complexity and size of a customer's
networks. Our sales cycle, which is the period from the time a sales lead is
generated until the recognition of revenue, can often be longer than one year.
The length and variability of our sales cycle is influenced by a variety of
factors beyond our control, including our customers' buildout and deployment
schedules, our customers' access to product purchase financing, our customers'
needs for functional demonstration and field trials, and the manufacturing lead
time for our products. Because our sales cycles are long and variable and may
require us to invest significant resources without any assurances of sales, our
results of operations may be unpredictable.

The GigaMux'r', EPC'TM', TeraManager'TM' and JumpStart'TM' are our only
currently available significant products, and if they are not commercially
successful, our revenue will not grow and we may not achieve profitability.

     If our customers and potential customers do not adopt, purchase and
successfully deploy our GigaMux'r', EPC'TM', TeraManager'TM' and JumpStart'TM'
products in large numbers, our revenue may not grow and our business, financial
condition and results of operations will be seriously harmed. Because the market
for our products is relatively new, future demand for our products is uncertain
and will depend on the speed of adoption of optical networking, in general, and
optical equipment in metro and regional networks, in particular.

If we are not able to develop and commercialize new or enhanced products, our
operating results and competitive position will be seriously harmed.

     Our growth depends on our ability to successfully fund and develop new and
enhanced products. The development of new or enhanced products is a costly,
complex and uncertain process that requires us to anticipate accurately future
technological and market trends. Our next generation of transport and network
management products, as well as our TeraMatrix'TM' line of wavelength switching
products, is currently under development. We cannot be sure whether these or
other new products will be successfully developed and introduced to the market
on a timely basis, or at all. We will need to complete each of the following
steps to successfully commercialize these and any other new products, complete
product development, qualify and establish component suppliers, validate
manufacturing methods, conduct extensive quality assurance and reliability
testing, complete software validation, and demonstrate systems interoperability.

     Each of these steps presents serious risks of failure, rework or delay, any
one of which could adversely affect the rate at which we are able to introduce
and market our products. If we do not develop these products in a timely manner,
our competitive position and financial condition could be adversely affected.

     In addition, as we introduce new or enhanced products, we must also manage
the transition from older products to newer products. If we fail to do so, we
may disrupt customer ordering patterns or may not be able to ensure that
adequate supplies of new products can be delivered to meet anticipated customer
demand. Any failure to effectively manage this transition may cause us to lose
current and prospective customers.


                                       18







If our products do not interoperate with our customers' networks, installations
will be delayed or cancelled or our products could be returned.

     Many of our customers require that we design products to interoperate with
their existing networks, each of which may have different specifications and
utilize a variety of protocols. Our customers' networks contain multiple
generations of products that have been added over time as these networks have
grown and evolved. Our products must intemperate with all of the products within
these networks as well as future products in order to meet our customers'
requirements. If we are required to modify our product design to be compatible
with our customers' systems to achieve a sale, it may result in a longer sales
cycle, increased research and development expense and reduced margins on our
products. If our products do not interoperate with those of our customers'
networks, installations could be delayed, orders for our products could be
cancelled or our products could be returned, any of which could seriously harm
our business.

Our products may have errors or defects that we find only after deployment,
which could seriously harm our relationship with our customers and our
reputation.

     Our customers may discover errors or defects in our products, and our
products may not operate as expected. If we are unable to fix errors or other
problems that may be identified on a timely basis, we could experience losses of
or delays in revenues and loss of market share, loss of customers, failure to
attract new customers or achieve market acceptance, diversion of engineering
resources, increased service and warranty costs, and legal actions by our
customers. Any failure of our current or planned products to operate as expected
could delay or prevent their adoption and seriously harm our relationship with
our customers and our reputation.

We depend upon contract manufacturers and any disruption in these relationships
may cause us to fail to meet the demands of our customers and damage our
customer relationships.

     We use contract manufacturers to manufacture and assemble some of our
products in accordance with our specifications. We currently have three
U.S.-based contract manufacturers. We do not have long-term contracts with any
of them, and none of them is obligated to perform services for us for any
specific period or at any specified price, except as may be provided in a
particular purchase order. We may not be able to effectively manage our
relationships with these manufacturers and they may not meet our future
requirements for timely delivery or provide us with the quality of products that
we and our customers require.

     Each of our contract manufacturers also builds products for other
companies. We cannot be certain that they will always have sufficient quantities
of inventory available to fill our orders, or that they will allocate their
internal resources to fill these orders on a timely basis. Qualifying a new
contract manufacturer and commencing volume production is expensive and time
consuming and could result in a significant interruption in the supply of our
products. If we are required to change contract manufacturers, we may suffer
delays that could lead to the loss of revenue and damage our customer
relationships.


                                       19







We rely on a limited number of suppliers and single suppliers for some of our
components, and our sales and operating results may be seriously harmed if our
supply of any of these components is disrupted.

     We and our contract manufacturers currently purchase several key components
of our products from single and limited sources. We purchase each of these
components on a purchase order basis and have no long-term contracts for these
components. In the event of a disruption in supply or if we receive an
unexpectedly high level of purchase orders, we may not be able to develop an
alternate source in a timely manner or at favorable prices. Any of these events
could hurt our ability to deliver our products to our customers and negatively
affect our operating margins. In addition, our reliance on our suppliers exposes
us to potential supplier production difficulties or quality variations. Any such
disruption in supply would seriously affect our present and future sales.

We expect the average selling prices of our products to decline, which may
reduce gross margins and revenue.

     Our industry has experienced significant erosion of average product selling
prices. We anticipate that the average selling prices of our products will
decline in response to competitive pressures, increased sales discounts, and new
product introductions by our competitors or other factors. Such reduced sales
prices require us to reduce our costs in order to maintain or improve our
existing gross margins. If we are unable to achieve sufficient cost reductions
and increases in sales volumes, the decline in average selling prices will
reduce our gross margins and revenue.

If we are unable to hire or retain highly skilled personnel, we may not be able
to operate our business successfully.

     Our future success depends upon the continued services of our key
management, sales and marketing, and engineering personnel, many of whom have
significant industry experience and relationships. Many of our personnel could
be difficult to replace. We do not have "key person" life insurance policies
covering any of our personnel. The loss of the services of any of our key
personnel could delay the development and introduction of, and have a negative
impact on our ability to sell, our products. Competition for highly skilled
personnel is intense in our industry, and we may not be able to attract and
retain qualified personnel, which could seriously harm our business.

If we become subject to unfair hiring claims, we could incur substantial costs
in defending ourselves.

     Companies in our industry whose employees accept positions with competitors
frequently claim that their competitors have engaged in unfair hiring practices.
We cannot assure you that we will not receive claims of this kind in the future
as we seek to hire qualified personnel or that those claims will not result in
material litigation. We could incur substantial costs in defending ourselves or
our employees against such claims, regardless of their merits. In addition,
defending ourselves from such claims could divert the attention of our
management away from our operations.


                                       20







We may be unable to protect our intellectual property, which could limit our
ability to compete.

     We rely on a combination of patent, copyright, trademark and trade secret
laws and restrictions on disclosure to protect our intellectual property rights.
We also enter into confidentiality or license agreements with our employees,
consultants and corporate partners, and control access to, and distribution of,
our software, documentation and other proprietary information. Despite our
efforts to protect our proprietary rights, unauthorized parties may attempt to
copy or otherwise obtain and use our products or technology. Monitoring
unauthorized use of our products is difficult, and we cannot be certain that the
steps we have taken will prevent unauthorized use of our technology,
particularly in foreign countries where the laws may not protect our proprietary
rights as fully as in the United States. If competitors gain access to our
technology, our ability to compete could be harmed.

We could become subject to litigation regarding intellectual property rights,
which could seriously harm our business and require us to incur significant
costs.

     In recent years, there has been significant litigation in the United States
involving patents and other intellectual property rights. We may be a party to
litigation in the future to protect our intellectual property or as a result of
an allegation that we infringe upon others' intellectual property rights. Any
parties asserting that our products infringe upon their proprietary rights would
force us to defend ourselves and possibly our customers or manufacturers against
the alleged infringement. These claims and any resulting lawsuits, if
successful, could subject us to significant liability for damages and
invalidation of our proprietary rights. Additionally, any claims and lawsuits,
regardless of their merits, would likely be time-consuming and expensive to
resolve and would divert management time and attention.

     Any claims of infringement on the intellectual property rights of others
could also force us to do one or more of the following: stop selling,
incorporating or using our products that use the challenged intellectual
property, obtain from the owner of the infringed intellectual property right a
license to sell or use the relevant technology, which may not be available to us
on reasonable terms, or at all, or redesign- those products that use such
technology. If we are forced to take any of the foregoing actions, our business
may be seriously harmed. However, we intend to vigorously protect our
intellectual property against all material challenges.

If necessary licenses of third-party technology are not available to us or are
very expensive, our products could become obsolete.

     We have been licensing, and may be required to license, technology from
third parties to develop new products or product enhancements. We cannot assure
you that third-party licenses will be available to us on commercially reasonable
terms, if at all. If we are required to obtain any third-party licenses to
develop new products and product enhancements, we could be required to obtain
substitute technology, which could result in lower performance or greater cost,
either of which could seriously harm the competitiveness of our products.

     Our international operations are subject to a number of risks, including
changes in foreign government regulations and telecommunications standards,
import and export license requirements, tariffs, taxes and other trade barriers,
fluctuations in currency exchange rates, difficulty in collecting accounts
receivable, the burden of complying with a wide variety of


                                       21







foreign laws, treaties and technical standards, difficulty in staffing and
managing foreign operations, and political and economic instability.

     The majority of our sales and expenses have been denominated in U.S.
dollars. However, in the future a larger portion of our sales and expenses may
be denominated in non-U.S. currencies. As a result, currency fluctuations
between the U.S. dollar and the currencies in which we do business could cause
foreign currency translation gains or losses that we would recognize in the
period incurred. We cannot predict the effect of exchange rate fluctuations on
our future operating results because of the number of currencies involved, the
variability of currency exposure and the potential volatility of currency
exchange rates. We do not currently engage in foreign exchange hedging
transactions to manage our foreign currency exposure.

If we do not effectively address our financial, managerial and manufacturing
processes, we may not be able to successfully expand our business.

     Our business has experienced wide fluctuations in sales volume from quarter
to quarter, which places a significant strain on our management systems and
resources. Our ability to successfully offer our products and implement our
business plan in a rapidly evolving market requires an effective planning and
management process. We will need to continue to improve our financial,
managerial and manufacturing processes and reporting systems, and will need to
continue to expand, train and manage our workforce worldwide. If we fail to
effectively address the above requirements, our ability to pursue business
opportunities and expand our business could be harmed.

Our stock price may be volatile which may affect your ability to sell shares at
or above the offering price or result in securities litigation against us.

     The stock market in general, the Nasdaq Stock Market and the stock of
optical networking companies in particular, have experienced extreme price and
volume fluctuations that have often been unrelated or disproportionate to a
company's operating performance. We expect the price of our common stock to
fluctuate. The offering price may not be indicative of the prices that will
prevail in the public market after the offering. The trading price of our common
stock could fluctuate in response to factors including those described elsewhere
in this prospectus and:

     o    General market and economic conditions;

     o    Announcements of technological innovations or new products;

     o    Publicity regarding actual or potential results with respect to
          technologies or products under development; and

     o    Other events or factors, many of which are beyond our control.

     These broad market and industry factors may cause our stock price to
decline, regardless of our actual operating performance. In the past, following
periods of volatility in the market price of a company's securities, securities
class-action litigation has often been instituted against that company.
Securities class-action litigation, if instituted, could result in substantial
costs and a diversion of management's attention and resources, which would harm
our profitability.


                                       22







                                  THE OFFERING


                                 
Shares of Common Stock Offered...   2,369,547  shares of common stock.

Use of Proceeds..................   We do not own any of the shares being
                                    registered hereunder and so we will not
                                    receive any cash proceeds from the sale of
                                    the shares.

Nasdaq Symbol....................   FIBR


                                 USE OF PROCEEDS

     We do not own any of the shares offered hereunder and we will not receive
any cash proceeds from their sale.

                              SELLING SHAREHOLDERS

     We are registering a total of 2,369,547 shares of our common stock,
pursuant to the requirements of the Agreement and Plan of Merger we entered into
with LuxN, and the Settlement Agreement we entered into with our former
consultant. We are registering for resale the shares of common stock that were
issued at the closing of the merger, the shares that will be issued upon receipt
of shareholder approval, and the shares that are issuable upon exercise of the
warrants we issued to the selling shareholders. We are also registering for
resale the shares of common stock that will be issued to our former consultant
as part of the settlement consideration. Other than the shares covered by this
prospectus, none of the selling shareholders listed below holds more than one
percent (1%) of our common stock and, other than our former officer, Mr. Hecht,
none of the selling shareholders listed below has ever held any position or
office with us.

     The following table sets forth information for the shares being registered
hereunder, as of September 19, 2003 with respect to the shares held by the
selling shareholders. The number of shares of common stock offered for resale
by this prospectus by the selling shareholders was determined by the terms of
our agreement with such selling shareholders.



                                                    Shares of Common     Number of Shares   Number of Shares of
                                                   Stock Owned Prior    to be Offered for    Common Stock Owned
           Name of Selling Shareholder             to Offering (1)(3)      Sale (2)(3)       after Offering (2)
           ---------------------------             ------------------   -----------------   -------------------
                                                                                           
Aman Ventures, L.L.C                                     27,607              27,607                 0
China Development Industrial Bank Inc.                  234,664             234,664                 0
DVA Investment (BVI) Limited)                             6,487               6,487                 0
Menlo Entrepreneurs Fund VIII, L.P.                      35,160              35,160                 0
Menlo Ventures VIII, L.P.                               781,348             781,348                 0
MMEF VIII, L.P.                                          11,720              11,720                 0
MC Silicon Valley, Inc.                                   3,210               3,210                 0
Mitsubishi International Corp.                            1,587               1,587                 0
Mitsui & Co. (U.S.A.), Inc.                              11,581              11,581                 0
Mobius Technology Ventures Advisors Fund VI L.P.          1,677               1,677                 0



                                       23









                                                    Shares of Common     Number of Shares   Number of Shares of
                                                   Stock Owned Prior    to be Offered for    Common Stock Owned
           Name of Selling Shareholder             to Offering (1)(3)      Sale (2)(3)       after Offering (2)
           ---------------------------             ------------------   -----------------   -------------------
                                                                                           
Mobius Technology Ventures Side Fund VI L.P.                1,760               1,760               0
Mobius Technology Ventures VI L.P.                         43,045              43,045               0
SOFTBANK U.S. Ventures Fund VI L.P.                        46,168              46,168               0
New Enterprise Associate VIII, L.P.                        14,917              14,917               0
New Enterprise Associates 10, L.P.                         47,900              47,900               0
New Enterprise Associates 8A, L.P.                         29,833              29,833               0
Siemens Venture Capital GmbH                               23,163              23,163               0
Thomas Alexander                                          276,075             276,075               0
TWP LuxN Investors II                                         128                 128               0
U.S. Venture Partners VI, L.P.                             92,651              92,651               0
Bruce B. Allen Separate Property Trust                      6,905               6,905               0
Arthur H. Bruno                                               769                 769               0
Credit Shelter trust U/A/D/ 5/7/86                            217                 217               0
Jeffrey Fayman Jonathan Fayman                                271                 271               0
Quock Fong                                                    552                 552               0
Brian Frank                                                    23                  23               0
James Freund                                                  289                 289               0
Scott Gibbs                                                    17                  17               0
Richard Greene                                                292                 292               0
W. R. Hambrecht + Co., LLC                                      1                   1               0
Mary and Gary Hutchinson Revocable Trust DTD
   10/11/00                                                 1,621               1,621               0
Alan Katz                                                      23                  23               0
Alan Katz IRA                                                  13                  13               0
Edward Keaney                                                  12                  12               0
Vikas Luthra                                                  532                 532               0
Bruce A. Mann Rollover IRA                                    289                 289               0
William E. Mayer                                              587                 587               0
Sharon L. Smith IRA                                           217                 217               0
Lee W. Stuart                                                 866                 866               0
John B. Stuppin and Jane K. Stuppin, Trustees
   UTD 3/11/91                                                963                 963               0
Trevor Testwuide                                              439                 439               0
Wasch Family Limited Partnership                              288                 288               0
Wheatley Associates III, L.P.                              61,440              61,440               0
Wheatley Foreign Partners III, L.P.                        63,092              63,092               0
Wheatley Partners III, L.P.                               289,581             289,581               0
William Street Associates VII, LLC                        156,929             156,929               0
WS Investment Company, LLC (2002A)                          2,438               2,438               0
Leonard Hecht                                              90,200              90,200               0
Total                                                   2,369,547           2,369,547               0
                                                        =========           =========              ==


----------
(1)  Except as otherwise indicated, the number of shares beneficially owned is
     determined under rules promulgated by the SEC, and the information is not
     necessarily indicative of beneficial ownership for any other purpose. Each
     selling shareholder has sole voting power and investment power with respect
     to all shares listed as owned by that selling shareholder.


                                       24







(2)  We do not know when or in what amounts the selling shareholders will offer
     shares for sale, if at all. The selling shareholders may sell any or all of
     the shares included in and offered by this prospectus. Because the selling
     shareholders may offer all or some of the shares pursuant to this offering,
     we cannot estimate the number of the shares that will be held by the
     selling shareholders after completion of the offering. However, for
     purposes of this table, we have assumed that, after completion of the
     offering, none of the shares included in and covered by this prospectus
     will be held by the selling shareholders.

(3)  Includes the shares of common stock issuable upon receipt of shareholder
     approval and upon exercise of the warrants held by the selling shareholder.

     Mr. Hecht was an employee and executive vice president of our company from
August 22, 2000 until September 30, 2001, and, pursuant to a consulting
agreement, Leonard N. Hecht, Inc. served as a consultant to our company
commencing in October 1, 2001. Neither Mr. Hecht nor Leonard N. Hecht, Inc.
currently is employed by or serves as a consultant to our company.

                              PLAN OF DISTRIBUTION

     We have been advised that there are currently no underwriting arrangements
with respect to the shares being registered hereunder. The selling shareholders
may sell all or a portion of the shares beneficially owned by them and offered
hereby from time to time directly by the selling shareholders, or through one or
more underwriters, broker-dealers or agents who may receive compensation in the
form of discounts, concessions or commissions from the selling shareholders or
the purchasers of the shares. If the shares are sold through underwriters or
broker-dealers, the selling shareholder will be responsible for underwriting
discounts or commissions or agent's commissions. The shares may be sold in one
or more transactions at fixed prices, at prevailing market prices at the time of
the sale, at varying prices determined at the time of sale, or at negotiated
prices. These sales may be effected in transactions, which may involve crosses
(crosses are transactions in which the same broker acts as an agent on both
sides of the trade) or block transactions:

     on any national securities exchange or quotation service on which the
securities may be listed or quoted at the time of sale,

     in the over-the-counter market,

     in transactions otherwise than on these exchanges or services or in the
over-the-counter market,

     through the writing of options, whether such options are listed on an
options exchange or otherwise, or

     through the settlement of short sales.

     In connection with sales of the common stock or otherwise, the selling
shareholders may enter into hedging transactions with broker-dealers, which may
in turn engage in short sales of the common stock in the course of hedging in
positions they assume. The selling shareholders may also sell shares of common
stock short and deliver shares of common stock covered by this prospectus to
close out short positions, provided that the short sale is made after the
registration statement is declared effective and a copy of this prospectus is
delivered in connection with the


                                       25







short sale. The selling shareholder may also loan or pledge shares of common
stock to broker-dealers that in turn may sell such shares. If the selling
shareholders effect such transactions by selling shares of common stock to or
through underwriters, broker-dealers or agents, such underwriters,
broker-dealers or agents may receive commissions in the form of discounts,
concessions or commissions from the selling shareholders or commissions from
purchasers of the shares of common stock for whom they may act as agent or to
whom they may sell as principal (which discounts, concessions or commissions as
to particular underwriters, broker-dealers or agents may be in excess of those
customary in the types of transactions involved).

     The selling shareholders may pledge or grant a security interest in some or
all of the shares of common stock owned by them and, if they default in the
performance of their secured obligations, the pledgees or secured parties may
offer and sell the shares of common stock from time to time pursuant to the
prospectus.

     The selling shareholders also may transfer, pledge or donate the shares of
common stock in other circumstances in which case the transferees, donees,
pledgees or other successors in interest will be the selling beneficial owners
for purposes of the prospectus. Upon our being notified by a named selling
shareholder that a donee or a pledgee intends to sell more than 500 shares, we
will file a supplement to this prospectus.

     The selling shareholders and any broker-dealer participating in the
distribution of the shares of common stock may be deemed to be "underwriters"
within the meaning of the Securities Act, and any commissions paid, or any
discounts or concessions allowed to any such broker-dealer may be deemed to be
underwriting commissions or discounts under the Securities Act. At anytime a
particular offer of the securities is made, a revised prospectus or prospectus
supplement, if required, will be distributed, which will disclose:

     The name of the selling shareholders and any participating underwriters,
broker-dealers or agents;

     The aggregate amount and type of securities being offered; The price at
which the securities were sold and other material terms of the offering;

     Any discounts, commissions, concessions or other items constituting
compensation from the selling shareholders and any discounts, commissions or
concessions allowed or reallowed or paid to dealers; and

     That the participating broker-dealers did not conduct any investigation to
verify the information in this prospectus or incorporated in this prospectus by
reference.

     We cannot assure you that any selling shareholder will sell any or all of
the shares or registered pursuant to the registration statement of which this
prospectus forms a part. Selling shareholders may also sell shares under Rule
144 under the Securities Act, if available, rather than under this prospectus.

     Once sold under the registration statement, of which this prospectus forms
a part, the shares of common stock will be freely tradable in the hands of
persons other than our affiliates.


                                       26







                         DESCRIPTION OF OUR COMMON STOCK

     As of September 5, 2003, there were approximately 10,335,800 shares of our
common stock issued and outstanding. We are a Delaware corporation and are
authorized to issue 150 million shares of common stock, par value $0.001 per
share, and 2 million shares of preferred stock, $0.01 par value per share.

     Each share of our common stock has one vote on all matters presented to the
shareholders. Because our common stock does not have cumulative voting rights,
the holders of more than 50% of the shares may, if they choose to do so, elect
all of the directors, and, in that event, the holders of the remaining shares
will not be able to elect any of our directors. The holders of our common stock
are entitled to receive dividends when, as and if declared by our board of
directors out of funds legally available therefor. In the event of our
liquidation, dissolution or winding up, holders of our common stock are entitled
to share ratably in all assets remaining available for distribution to them
after payment of liabilities and after provision for claims against us. Holders
of shares of common stock, as such, have no conversion, preemptive or other
subscription rights, and there are and will be no redemption provisions
applicable to the common stock. All of the outstanding shares of common stock,
and the shares of common stock offered hereby when issued against payment of the
consideration set forth in this prospectus, are, fully paid and nonassessable.

     The registrar and transfer agent for our common stock is American Stock
Transfer & Trust Co., 6201 15th Avenue, 3rd Floor, Brooklyn, New York 11219.

                       WHERE YOU CAN FIND MORE INFORMATION

     This prospectus is part of the registration statement on Form S-3 which we
filed with the SEC under the Securities Act using a "shelf" registration
process. As permitted by SEC rules, this prospectus does not contain all the
information included in the registration statement and the accompanying exhibits
filed with the SEC. You may refer to the registration statement and its exhibits
for more information.

     We are subject to and comply with the informational reporting requirements
of the Securities Exchange Act of 1934. You may read and copy any document we
file with the SEC at the SEC's public reference room at 450 Fifth Street, N.W.,
Room 1024, Washington, D.C. 20549 or at its regional offices at: 233 Broadway,
New York, New York 10279 and at 500 West Madison Street, Suite 1400, Chicago,
Illinois 60661. You may obtain further information about the operation of the
SEC's public reference room by calling the SEC at 1-800-SEC-0330. Our filings
are also available to the public over the Internet at the SEC's website at
http://www.sec.gov.

     The SEC allows us to "incorporate by reference" into this prospectus the
information we file with the SEC. This means that we may disclose important
information to you by referring you to those documents. The information we
incorporate by reference is considered to be part of this prospectus. If we
subsequently file superseding or updating information with the SEC in a document
that is incorporated by reference into this prospectus, the updated information
will also become a part of this prospectus and will supersede the earlier
information.


                                       27







     We are incorporating by reference into this prospectus the following
documents that we previously filed with the SEC:

     o    Our Annual Report on Form 10-K/A for the fiscal year ended January 31,
          2003.

     o    Our Quarterly Report on Form 10-Q for the fiscal quarter ended April
          30, 2003.

     o    Our Quarterly Report on Form 10-Q for the fiscal quarter ended July
          31, 2003.

     o    Our Current Reports on Form 8-K dated September 10, 2003, August 22,
          2003 (as amended August 25, 2003), August 13, 2003, June 13, 2003,
          June 9, 2003, June 3, 2003, May 30, 2003, May 29, 2003, May 12, 2003,
          April 11, 2003, and March 12, 2003.

     o    The description of our common stock contained in our post-effective
          amendment to our registration statement on Form S-3, filed with the
          SEC on June 5, 2003, including any amendment or report filed for the
          purpose of updating that description.

     We are also incorporating by reference into this prospectus all documents
that we subsequently file with the SEC under Sections 13(a), 13(c), 14 or 15(d)
of the Exchange Act after the date of this prospectus and prior to the
termination of this offering. Any statements made in this prospectus or in a
document incorporated or deemed to be incorporated by reference in this
prospectus will be deemed to be modified or superseded for purposes of this
prospectus to the extent that a statement contained in this prospectus or in any
other subsequently filed document that is also incorporated or deemed to be
incorporated by reference in this prospectus modifies or supersedes the
statement. Any statement so modified or superseded will not be deemed, except as
so modified or superseded, to constitute a part of this prospectus.

     You may obtain copies of any of our filings which are incorporated by
reference, at no cost, by contacting us at the following address or telephone
number:

                          Sorrento Networks Corporation
                               9990 Mesa Rim Road
                           San Diego, California 92121
                           Attention: Joe R. Armstrong
                             Chief Financial Officer
                                 (858) 558-3960

     In order to ensure timely delivery of the documents, your request should be
made no later than five (5) business days prior to the date on which you make
your final investment decision.

                           FORWARD LOOKING INFORMATION

     All statements included or incorporated by reference in this prospectus,
other than statements of historical facts, that address activities, events or
developments that we intend, expect, project, believe or anticipate will or may
occur in the future are forward looking statements. Such statements are
typically characterized by terminology such as "believe," "anticipate,"
"should," "intend," "plan," "will," "expect," "estimate," "project,"
"positioned," "strategy," and similar expressions. These statements are based on
assumptions and assessments


                                       28







made by our management in light of its experience and its perception of
historical trends, current conditions, expected future developments and other
factors our management believes to be appropriate. These forward looking
statements are subject to a number of risks and uncertainties, including those
risks described in this prospectus under "Risk Factors," as well as other
factors that our management has not yet identified. Any such forward looking
statements are not guarantees of future performance and actual results,
developments and business decisions may differ from those contemplated by such
forward looking statements. We disclaim any duty to update any forward looking
statements.

                                  LEGAL MATTERS

     The legality of the shares offered by this prospectus has been passed upon
by Greenbaum, Rowe, Smith, Ravin, Davis & Himmel LLP, Woodbridge, New Jersey.

                                     EXPERTS

     The financial statements incorporated by reference in this prospectus have
been audited by BDO Seidman, LLP, independent certified public accountants, to
the extent and for the periods set forth in their reports incorporated by
reference, and are incorporated herein in reliance upon such report given upon
the authority of said firm as experts in auditing and accounting.

              DISCLOSURE OF COMMISSION POSITION ON INDEMNIFICATION
                         FOR SECURITIES ACT LIABILITIES

     Insofar as indemnification for liabilities arising under the Securities Act
of 1933 may be permitted to directors, officers or persons controlling the
registrant pursuant to the foregoing provisions, the registrant has been
informed that in the opinion of the Securities and Exchange Commission such
indemnification is against public policy as expressed in that Act and is
therefore unenforceable.


                                       29







--------------------------------------------------------------------------------
--------------------------------------------------------------------------------

     We have not authorized any dealer, sales person or other person to give any
information or represent anything contained in this prospectus. You must not
rely on any unauthorized information.

     This prospectus is not an offer to sell, or a solicitation of an offer to
buy, securities in any jurisdiction where it is unlawful.

     The information contained in this prospectus is current as of September
19, 2003

--------------------------------------------------------------------------------
--------------------------------------------------------------------------------

--------------------------------------------------------------------------------
--------------------------------------------------------------------------------

                                2,369,547 Shares

                                SORRENTO NETWORKS

                                   CORPORATION

                                  Common Stock

                                   ----------

                                   PROSPECTUS

                                   ----------

                               September 19, 2003

--------------------------------------------------------------------------------
--------------------------------------------------------------------------------







                                     PART II
                     INFORMATION NOT REQUIRED IN PROSPECTUS

Item 14. Other Expenses of Issuance and Distribution.

     The registrant estimates expenses in connection with the offering described
in this Registration Statement will be as follows:



Item                                                                    Amount
----                                                                  ----------
                                                                   
Securities and Exchange Commission Registration Fee                   $   515.66
Printing and Engraving Expenses                                       $ 5,000.00
Accountants' Fees and Expenses                                        $ 5,000.00
Legal Fees and Expenses                                               $ 5,000.00
Nasdaq Listing Fees                                                   $22,500.00
Miscellaneous                                                         $    84.34
Total                                                                 $38,100.00


Item 15. Indemnification of Directors and Officers.

     The Registrant's Certificate of Incorporation permits indemnification to
the fullest extent permitted by Delaware law. The bylaws of the Registrant
require the Registrant to indemnify any person who was or is a party or is
threatened to be made a party to any proceeding, by reason of the fact that such
person was or is a director or officer of the Registrant or that, being or
having been such a director or officer of the Registrant, such person is or was
serving at the request of the Registrant as a director, officer, employee or
agent of another business entity, against expenses, judgments, penalties, fines
and amounts paid in settlement actually and reasonably incurred by such person
in connection with such proceeding if such person acted in good faith and in a
manner such person reasonably believed to be in, or not opposed to, the best
interests of the Registrant and, with respect to any criminal third party
proceeding (including any action or investigation which could or does lead to a
criminal third party proceeding) had no reasonable cause to believe such conduct
was unlawful. The Registrant may also indemnify any person who was or is an
authorized representative of the Registrant and who was or is a party or is
threatened to be made a party to any proceeding by reason of the fact that such
person was or is an authorized representative of the Registrant, against
expenses actually and reasonably incurred by such person in connection with the
defense or settlement of such proceeding if such person acted in good faith and
in a manner reasonably believed to be in, or not opposed to, the best interests
of the Registrant, except that no indemnification shall be made in respect of
any claim, issue or matter as to which such person shall have been adjudged to
be liable to the Registrant unless and only to the extent that the court in
which such corporate proceeding was pending shall determine upon application
that, despite the adjudication of liability but in view of all the circumstances
of the case, such authorized representative is fairly and reasonably entitled to
indemnity for such expenses which the court shall deem proper. Such
indemnification is mandatory under the Registrant's by-laws as to expenses
actually and reasonably incurred to the extent that an authorized representative
of the Registrant has been successful on the merits or otherwise in defense of
any third party or corporate proceeding or in defense of any claim, issue or
matter


                                      II-1







therein. The determination of whether an individual is entitled to
indemnification may be made by a majority of disinterested directors,
independent legal counsel in a written legal opinion or the shareholders.

     The Delaware General Corporation Law authorizes a corporation to indemnify
directors, officers, employees or agents of the corporation if such party acted
in good faith and in a manner he or she reasonably believed to be in or not
opposed to the best interest of the corporation and, with respect to any
criminal action or proceeding, had no reason to believe his or her conduct was
unlawful, as determined in accordance with the Delaware General Corporation Law.
Delaware law further provides that indemnification shall be provided if the
party in question is successful on the merits otherwise. In addition, the
Delaware General Corporation Law does not permit indemnification in an action or
suit by or in the right of the corporation, where such person has been adjudged
liable to the corporation, unless, and only to the extent that, a court
determines that such person fairly and reasonably is entitled to indemnity for
costs the court deems proper in light of liability adjudication. Indemnity is
mandatory to the extent a claim, issue or matter has been successfully defended.

     The Registrant currently maintains a directors and officers liability
insurance policy.

Item 16. Exhibits.



Exhibit Number                      Description of Document
--------------                      -----------------------
              
     2.1         Agreement and Plan of Merger with LuxN, Inc. (J).

     3.1         Certificate of Incorporation of the Registrant (G).

     3.2         By-Laws of the Registrant (G).

     3.3         Series D Preferred Stock Certificate of Designation (G).

     4.1         1988 Stock Option Plan (B).

     4.2         Amended and Restated 1997 Incentive and Non-Qualified Stock
                 Option Plan (A).

     4.3         1997 Directors Stock Option Plan (C).

     4.4         2000 Stock Incentive Plan (E).

     4.5         2000 Employee Stock Purchase Plan (D).

     4.6         2000 Stock Option/Stock Issuance Plan of Sorrento Networks,
                 Inc. (E).

     4.7         Form of 7.5% Convertible Debenture Due August 2, 2007 (G).

     4.8         Form of Warrant, expiry date August 2, 2007 (G).

     4.9         Sorrento Networks Corporation 2003 Equity Incentive Plan (G).




                                      II-2








              
     5.          Opinion of Greenbaum, Rowe, Smith, Ravin, Davis & Himmel LLP -
                 filed herewith.

     10.1        Agreement dated July 12, 2000 with Richard L. Jacobson (E).

     10.2        Agreement dated March 1, 2002, with Phillip W. Arneson (F).

     10.3        Exchange Agreement dated March 6, 2003 (G).

     10.4        Form of Registration Rights Agreement with Exchanging Holders
                 (G).

     10.5        Agreement dated May 17, 2002 with Joe R. Armstrong (H).

     10.6        Agreement dated July 3, 2002 with Richard L. Jacobson (H).

     10.7        Agreement dated February 1, 2003 with Robert L. Hibbard (H).

     10.8        First Amendment to Exchange Agreement (I).

     21.         Subsidiaries of the Registrant (H).

     23.1        Consent of BDO Seidman LLP - filed herewith.

     23.2        Consent of Greenbaum, Rowe, Smith, Ravin, Davis & Himmel LLP
                 (included in opinion filed as Exhibit 5).


----------
The foregoing are incorporated by reference from the Registrant's filings
indicated:

(A)  Proxy Statement dated December 1, 1999.
(B)  Proxy Statement dated May 13, 1998.
(C)  Proxy Statement dated November 21, 1997.
(D)  Proxy Statement dated December 11, 2000.
(E)  Form 10-K for the year ended January 31, 2001.
(F)  Form 10-K/A for the year ended January 31, 2002.
(G)  Proxy Statement filed with the SEC on April 16, 2003.
(H)  Form 10-K/A for the year ended January 31, 2003.
(I)  Form 8-K dated May 30, 2003.
(J)  Form 8-K/A dated August 25, 2003.

     NOTE: Certain previously filed exhibits are no longer being incorporated by
reference (and therefore not numerically listed) as the underlying documents
have either expired or are no longer material or relevant.

Item 17. Undertakings.

     The undersigned registrant hereby undertakes:

          (1) To file, during any period in which offers or sales are being
          made, a post-effective amendment to this registration statement:


                                      II-3







               (i)    To include any prospectus required by section 10(a)(3) of
                      the Securities Act of 1933;

               (ii)   To reflect in the prospectus any facts or events arising
                      after the effective date of the registration statement (or
                      the most recent post-effective amendment thereof) which,
                      individually or in the aggregate, represent a fundamental
                      change in the information set forth in the registration
                      statement. Notwithstanding the foregoing, any increase or
                      decrease in volume of securities offered (if the total
                      dollar value of securities offered would not exceed that
                      which was registered) and any deviation from the low or
                      high end of the estimated maximum offering range may be
                      reflected in the form of prospectus filed with the
                      Commission pursuant to Rule 424(b) if, in the aggregate,
                      the changes in volume and price represent no more than 20
                      percent change in the maximum aggregate offering price set
                      forth in "Calculation of Registration Fee" table in the
                      effective registration statement; and

               (iii)  To include any material information with respect to the
                      plan of distribution not previously disclosed in the
                      registration statement or any material change to such
                      information in the registration statement.

          (2) That, for the purpose of determining any liability under the
          Securities Act of 1933, each such post-effective amendment shall be
          deemed to be a new registration statement relating to the securities
          offered therein, and the offering of such securities at that time
          shall be deemed to be the initial bona fide offering thereof.

          (3) To remove from registration by means of a post-effective amendment
          any of the securities being registered which remain unsold at the
          termination of the offering.

     The undersigned registrant hereby undertakes to supplement the prospectus,
after the expiration of the subscription period, to set forth the results of the
subscription offer, the transactions by the underwriters during the subscription
period, the amount of unsubscribed securities to be purchased by underwriters,
and the terms of any subsequent reoffering thereof. If any public offering by
the underwriters is to be made on terms differing from those set forth on the
cover page of the prospectus, a post-effective amendment will be filed to set
forth the terms of such offering.


                                      II-4







                                   SIGNATURES

     Pursuant to the requirements of the Securities Act of 1933, the registrant
certifies that it has reasonable ground to believe that it meets all of the
requirements for filing on Form S-3 and has duly caused this Registration
Statement to be signed on its behalf by the undersigned, thereunto duly
authorized, in the City of San Diego, State of California, on the 19th day of
September, 2003.

                                                   SORRENTO NETWORKS CORPORATION


                                                   By: /s/ Phillip W. Arneson
                                                       -------------------------
                                                   Phillip W. Arneson
                                                   Chief Executive Officer

KNOW ALL MEN BY THESE PRESENTS, that each person whose signature appears below
constitutes and appoints Phillip W. Arneson, his true and lawful
attorney-in-fact and agent, with full power of substitution and revocation, for
him and in his her name, place and stead, in any and all capacities, to sign (i)
any and all amendments (including post-effective amendments) to this
Registration Statement and to file the same with all exhibits thereto, and other
documents in connection therewith and (ii) any registration statement and any
and all amendments thereto, relating to the offer covered hereby filed pursuant
to Rule 462(b) under the Securities Act of 1933, with the Securities and
Exchange Commission, granting unto said attorney-in-fact and agent, full power
and authority to do and perform each and every act and thing requisite and
necessary to be done as fully to all intents and purposes as he might or could
do in person, hereby ratifying and confirming all that said attorney-in-fact and
agent, or his substitute or substitutes, may lawfully do or cause to be done by
virtue hereof.

     Pursuant to the requirements of the Securities Act of 1933, this
Registration Statement has been signed by the following persons in the
capacities and on the date indicated:



       Signature                       Title                       Date
       ---------                       -----                       ----
                                                      


/s/ Phillip W. Arneson   Chief Executive Officer,           September 19, 2003
----------------------   Chairman, Director
PHILLIP W. ARNESON


/s/ Joe R. Armstrong     Principal Accounting               September 19, 2003
----------------------   Officer, Chief Financial Officer
JOE R. ARMSTRONG


DONNE FISHER             Director


/s/ Robert Hibbard       Director                           September 19, 2003
----------------------
ROBERT HIBBARD


GARY M. PARSONS          Director


/s/ Larry J. Matthews    Director                           September 19, 2003
---------------------
LARRY J. MATTHEWS



                                      II-5



                         STATEMENT OF DIFFERENCES
                         ------------------------
The trademark symbol shall be expressed as.............................. 'TM'
The registered trademark symbol shall be expressed as................... 'r'