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RS-FEC in Virtex UltraScale FPGA operates Finisar 100G ER4f CFP4 optical module error-free over 50km of fiber

Xilinx Employee
Xilinx Employee
0 0 50.1K

Martin Gilpatric from Xilinx, who either cannot or will not make a bad video, takes all of 90 seconds in a video from OFC 2015 to fully explain the demo of a Virtex UltraScale FPGA on a VCU109 board driving a Finisar 100G ER4f CFP4 optical module connected to 50km of optical fiber—with no transmission errors. The ER4f spec includes a noise floor that requires the use of an RS-FEC to guarantee error-free transmission. The demo has a Xilinx 100G RS-FEC LogiCORE IP working in conjunction with the embedded, hard-core 100G Ethernet MAC in the Virtex UltraScale FPGA and, sure enough, the 50km link is running error-free.