Low-Complexity Nonlinearity Compensation for Short-Reach IM/DD Systems using PAM

Tom Wettlin,Talha Rahman,Stefano Calabro,Jinlong Wei,Sabbir-Bin Hossain,Nebojsa Stojanovic,Stephan Pachnicke

Low-Complexity Nonlinearity Compensation for Short-Reach IM/DD Systems using PAM

2021

Tom Wettlin
Talha Rahman
Stefano Calabro
Jinlong Wei
Sabbir-Bin Hossain
Nebojsa Stojanovic
Stephan Pachnicke

We investigate the performance of non-regular PAM8 constellations and introduce a novel non-uniformly quantized equalizer to improve nonlinearity compensation in 70 GBd PAM8 back-to-back and 1 km SSMF transmission without additional complexity.

Keywords:

fiber nonlinear optics
Electronic engineering
Optical fiber
Computer science
low complexity
Nonlinear system
compensation
Transmission (telecommunications)
Equalizer
Signal processing

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