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Conferences > OFC > 2023 > Tu3I > Tu3I.5

128-Gbaud PAM4 O-Band Transmission Using Advanced MLSE with Simple LLR Calculation for SD-FEC Scheme

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

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Abstract

We propose simple methods to calculate LLR for IM-DD system with MLSE and SD-FEC and show that an advanced MLSE with the LLR calculation methods makes NGMI higher in 128-Gbaud PAM4 in 20-GHz bandwidth limitation.

© 2023 The Author(s)

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

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