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84 GBd Faster-Than-Nyquist PAM-4 Transmission Using Only Linear Equalizer at Receiver

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Abstract

Based on Tomlinson-Harashima precoding, we demonstrate 84 GBd PAM-4 transmission in an intensity-modulation direct-detection system with 33 GHz brick-wall bandwidth limitation. BER below 7% hard-decision FEC threshold is achieved using only linear equalizer at receiver.

© 2019 The Author(s)

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