NTT Electronics Adds 200G DSP for DWDM

NTT Electronics (NEL) announced has begun sampling a 20nm 200G High Performance DSP for use in metro, regional and long haul DWDM systems.

The new 200G High Performance DSP (NLD0660) improves OSNR performance with a brand-new DSP core whose Soft-Decision Forward-Error-Correction (SD-FEC) achieves 12dB Net-Coding-Gain (NCG), allowing either less optical repeaters or longer fiber reach between optical transceivers. It supports a variety of Dual Polarization (DP) modulation formats, 16QAM, 8QAM, and QPSK. 200 Gb/s DP 16QAM doubles Metro Access (MA) link capacity, 150 Gbps DP 8QAM upgrades Metro Regional’s (MR’s) capacity, whereas 100 Gbps DP QPSK expands Long Haul (LH) reach through OSNR improvement. If configured with two DSP chips for Nyquist super-channel dual-carrier solution, then dense WDM transmission of 400 Gbps, 300 Gbps, and 200 Gbps all per 100 GHz spacing or denser are made possible in MA, MR, and LH fiber links respectively.

This is the second 20nm CMOS coherent DSP in NEL’s lineup which is enabled by its ongoing collaboration with Broadcom.

“We are committed to pioneering innovation in the coherent PHY market through our partnership with Broadcom,” said Haruhiko Ichino, NEL Executive Vice President and General Manager of Broadband System & Device Business Group. “We are proud to see our 20nm CMOS products contributing to fiber links being deployed world-wide. Our commitment continues with the development of additional DSP products including a next-generation DSP using the most-advanced 16nm CMOS process.”

http://www.ntt-electronics.com/en/news/2015/9/200g-high-performance-dsp.html