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Probabilistic shaping for 56-Gbps PAM-4 signalling over 8-GHz-bandwidth VCSEL-modulated optical interconnection links

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Abstract

In this paper, probabilistic shaping for PAM-4 signalling at 56 Gbps is demonstrated for the first time. Experiment is carried out over 8-GHz-bandwidth VCSEL-modulated optical interconnection links with significantly reduced BER due to probabilistic shaping.

© 2017 Optical Society of America

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