[WB1] Data Center Interconnect

10:00 AM - 10:15 AM JST(1:00 AM - 1:15 AM UTC)

[WB1-2] Analysis of Hyper-Parameter in Simple-Soft-Output MLSE for High-Baud-Rate PAM4 O-Band Transmission

○Shuto Yamamoto¹, Hiroki Taniguchi¹, Masanori Nakamura¹, Etsushi Yamazaki¹ (1. NTT Corporation (Japan))

Keywords:

Digital signal processing,advanced modulation,coding and multiplexing,Digital signal processing algorithms for optical communications,Advanced modulation and demodulation for optical communications,Coding and forward error correction for optical communications,Transmission subsystems,Optical transmitter and receiver subsystems

We theoretically analyze the optimization of the hyper parameter that maximizes NGMI in a simple-soft-output MLSE scheme for SD-FEC and show that the experimental results fit well with the theoretical analysis through 200-Gbaud PAM4 transmission.