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Delta-Sigma Modulation with Coherent Detection for High-Fidelity 4194304-QAM Transmission at 71.5dB SNR

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Abstract

We experimentally demonstrate 1/2-bit delta-sigma modulation and transmission in a 40Gbaud QPSK/16-QAM coherent system. After 24km SSMF transmission, up to 2.5Gbaud 4194304-QAM Nyquist signal is successfully transmitted at 71.5dB SNR.

© 2021 The Author(s)

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