Finisar Introduces First Wavelength-Tunable XFP-RF Optical Transmitter for Cable Access Networks

Wide-Band Tunable Wavelength Capability Brings New-Found Operational Flexibility to Cable Operators

Finisar Corporation (NASDAQ: FNSR) today introduced the industry's first 1 GHz RF-modulated, widely-tunable optical transmitter in a Small-Form Factor module for cable operators' access networks. The XFP-RF transmitter can be designed into existing broadband optical platforms to double the density and halve the power consumption of transmitters in Hybrid Fiber Coaxial (HFC) networks. It can also be plugged directly into next-generation Cable Modem Termination Systems and QAM modulators with optical ports, saving space and power. Finisar will showcase its wavelength-tunable XFP-RF transmitter in a demonstration at the SCTE Cable-Tec Expo in Orlando, Florida, October 17-19 in booth #2105.

Consumer demands for video and bandwidth services continue to rise. As a result, cable operators are deploying Dense Wavelength Division Multiplexing (DWDM) in their access networks to dramatically increase the bandwidth available over their existing fiber infrastructure. Finisar's XFP-RF optical transmitter module introduces wide-band wavelength tuning to HFC networks, allowing the cable operator to tune it to 80 different DWDM wavelengths across the entire C-band in less than 500 milliseconds. Tunability eliminates the need for an inventory of transmitters at fixed wavelengths and eases the provisioning of complex DWDM networks. Wavelength-tunability also enables future, innovative architectures that can route services by managing the wavelengths of the HFC transmitters.

The XFP-RF transmitter utilizes Finisar's high-volume XFP manufacturing process being used for today's wavelength-tunable 10 Gb/s digital transceivers. It can be fully-loaded from 50 MHz to 1 GHz with a reach up to 40 km, and has operational bandwidth up to 1.2 GHz to accommodate frequency expansions in the cable access network. The performance is distance-agnostic so a single transmitter can be deployed for redundant paths to a node or to multiple nodes in a tapped architecture where the distance can vary greatly.

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The optical transceiver with which the programmer is tested before shipping to the buyer -  1pc.
Software.

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