Analysis of Differential Group Delay on 800G LR4 With Partial Response Equalization and MLSE Decoder (Th2A.11)
Presenter: Jiahao Zhou, Univ of Electronic Science & Tech. China
We analyze the influence of DGD on beyond 200-Gb/s PAM-4 transmissions. We find the precoding and a joint PRE with MLSE have a better DGD tolerance among various equalizers, achieving 1.9-dB gain compared with MLSE.
Authors:Jiahao Zhou, Univ of Electronic Science & Tech. China / JING ZHANG, Univ of Electronic Science & Tech. China / Shaohua Hu, Univ of Electronic Science & Tech. China / Zhaopeng Xu, Peng Cheng Laboratory / Bo Xu, Univ of Electronic Science & Tech. China / Kun Qiu, Univ of Electronic Science & Tech. China