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Conferences > SPPCom > 2015 > SpT4D > SpT4D.3

Carrier Phase Recovery for Optical Coherent M-QAM Communication Systems Using Harmonic Decompositionbased Maximum Loglikelihood Estimators

Trung-Hien Nguyen, Michel Joindot, Pascal Scalart, Mathilde Gay, Laurent Bramerie, Olivier Sentieys, and Jean-Claude Simon

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Abstract

A novel feedforward M–QAM carrier phase recovery is presented and validated with both square and cross M–QAM up to 128–QAM. The proposed method outperforms the VVMPE–ML method with reduced computational effort and improved linewidth tolerance.

© 2015 Optical Society of America

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