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Conferences > ECEOC > 2022 > We5 > We5.26
  • European Conference on Optical Communication (ECOC) 2022
  • Technical Digest Series (Optica Publishing Group, 2022),
  • paper We5.26

Evaluation of NGMI in 128-Gbuad PAM4 O-Band 10-km Transmission Using MLSE Based on Nonlinear Channel Estimation and Decision Feedback

Shuto Yamamoto, Hiroki Taniguchi, Akira Masuda, Masanori Nakamura, and Yoshiaki Kisaka

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Abstract

We demonstrate 128-Gbaud PAM4 transmission with 3-dB bandwidth of 20 GHz and show that advanced MLSE schemes achieve the higher performance not only in BER but also in NGMI. The NGMI deviates from the theoretical value because a simple method is utilized for LLR calculation.

© 2022 The Author(s)

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