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Conferences > OFC > 2015 > Th2A > Th2A.11

Advanced Detection of Super-Nyquist WDM QPSK Signals with 5-bit/s/Hz Spectral Efficiency

Sai Chen, Chongjin Xie, and Jie Zhang

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Abstract

We show that using a quadrature 4-level polybinary detection scheme together with maximum-likelihood-sequence estimation, we can achieve a 5-bit/s/Hz spectral efficiency for super-Nyquist WDM quadrature-phase-shift-keyed signals, with performance comparable to 16-ary quadrature-amplitude modulation.

© 2015 Optical Society of America

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