C-Band PAM-4 Transmission Over 60-km SSMF Using Weight-Sharing Nonlinear Weighted DFEs

Junwei Zhang,Heyun Tan,Lin Sun,Xiong Wu,Alan Pak Tao Lau,Chao Lu

2023 Opto-Electronics and Communications Conference (OECC)（2023）

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摘要

Two weight-sharing nonlinear weighted DFEs are proposed for C-band 100-Gbit/s PAM-4 transmission over 60-km SSMF, one of which using absolute terms shows >26% complexity reduction compared with other nonlinear DFEs under 7% HD-FEC BER limit.

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关键词

4-level pulse amplitude modulation (PAM-4),improved weighted decision-feedback equalizer (IWDFE),weight-sharing

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