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Overview

Extend fiber network distances and convert wavelengths

 

Operators of Telecom and Cable MSO networks are facing challenges of distance limitations and bandwidth capacity as fiber networks evolve to provide more services to more customers.

Wavelength Division Multiplexing (WDM) technology is commonly used in today’s optical network. WDM increases fiber capacity by assigning each service (10G Fiber Channel, etc) an independent dedicated wavelength—which then is multiplexed into one fiber strand. Dense Wavelength Division Multiplexing (DWDM) systems are deployed on Optical Transport Networks (OTN) and other high-capacity fiber networks, but can require expensive optical amplifiers to reach long distances.

Gigabit, SONET and other legacy networks can require longer distances, and network operators need reliable and cost-effective solutions to avoid expensive forklift equipment upgrades.

The Optical-Electrical-Optical transponder (O-E-O) works as a re-generator which converts an optical input signal into electrical form, then generates a logical copy of an input signal and uses this signal to drive a transmitter to generate an optical signal at the new wavelength. The O-E-O Transponder automatically receives, amplifies, and then re-transmits a signal on a different wavelength without altering the data/signal content. Clients can be electrical or optical (1310 or 1550 nm), co-located or some distance away. Line side interfaces can be fiber, CWDM or DWDM with a variety of distances supported.