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26 March 2015

Finisar demos 200G coherent portfolio, launching CFP2-ACO and first 5"x7" Flex-Rate transponder

At the Optical Fiber Communications conference & exposition (OFC 2015) in Los Angeles (24-26 March), fiber-optic communications component and subsystem maker Finisar Corp of Sunnyvale, CA, USA is demonstrating several new coherent transport products, including a pluggable CFP2-ACO coherent transceiver supporting 100G QPSK and 200G 16QAM applications, and what is claimed to be the first 5-inch x 7-inch Flex-Rate (40G to 200G) coherent transponder with internal DSP (digital signal processing). Separately, Finisar is demonstrating a 100G ultra-long repeater-less fiber-optic link, using its Ultraspan products.

Flexible coherent technology supporting 40 /50G BPSK, 100G QPSK and 200G 16QAM 

With its new Flex-Rate transponder and CFP2-ACO transceiver, Finisar brings next-generation coherent 200G technology to datacenter-interconnect and metro/long-haul DWDM applications. Coherent 200G technology offers the lowest cost-per-bit solution available, says the firm, and enables 400G transport using two wavelengths. The demonstration shows 200G 16QAM interoperability between Finisar's Flex-Rate transponder and a CFP2-ACO module. These flexible solutions support multiple combinations of modulation format, data rate and reach, simplifying system integration.

The Flex-Rate transponder offers what is claimed to be industry-leading performance and high output powers up to +7dBm. Supported by the embedded Lightspeed II CL20010 DSP (digital signal processor) from ClariPhy, the module is said to provide exceptional optical signal-to-noise ratio (OSNR) tolerance and extended chromatic dispersion tolerance, reducing the need for regeneration. The module is suitable for applications in transport and routing systems. A variant supporting 40/50G BPSK is also available for ultra-long-haul and submarine applications. 

Based on Finisar's indium phosphide (InP) technology, the CFP2-ACO transceiver offers a flexible architecture. Using linear RF drivers, it can support any modulation format from 40/50G BPSK to 200G 16QAM. Separate lasers for transmit and receive allow the module to support different wavelengths in each direction. The module follows the mechanical and management interface defined by the CFP MSA and supports all three classes defined by the draft OIF Implementation Agreement. While existing router and transport equipment typically offer 1-2 coherent ports per line-card, the CFP2-ACO can enable system vendors to offer high-density pluggable interfaces supporting 1Tb/s or more on a line-card. Both products are currently sampling.

UltraSpan technology for ultra-long fiber-optic links

Finisar is also showcasing new technology based on its UltraSpan amplifiers to extend the reach and capabilities of traditional telecom systems. For ultra-long (400km) fiber-optic links (as used in applications such as oil, gas, mining, energy, and transportation), the firm is demonstrating a 100G coherent link that does not require repeaters. UltraSpan products are currently shipping in volume.

Tags: Finisar CFP2 coherent

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Visit: www.finisar.com

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