[CTuA9C] Electrical Nonlinear Equalization

[CTuA9C-01] Nonlinear Eye Skew Equalizers for Directly-Modulated Laser based 400G-LR Transmission Systems

*Jyh-Kae Lin¹, Chun-Yen Chuang¹, Kuan-Hao Liu¹, Jyehong Chen¹, Chin-Shih Huang², Hao-Chun Hsieh², Hung-Chun Pan², Tsung-Han Lee², Chia-Wei Kao² (1. National Yang Ming Chiao Tung Univ. (Taiwan), 2. Wistron Corp. (Taiwan))

[Presentation Style] Onsite

We propose two nonlinear eye-skew equalizers for 400G-LR4 transceivers using DMLs. After equalizers, the eye-skew is effectively reduced, and the system shows a 3.2 dB power budget improvement and more than 10^7 BER floor reduction.