Chinese Optics Letters, 2016, 14 (2): 020601, Published Online: Sep. 21, 2018  

Pilot-added carrier-phase recovery scheme for Nyquist M-ary quadrature amplitude modulation optical fiber communication system Download: 938次

Author Affiliations
1 School of Science, Beijing University of Posts and Telecommunications, Beijing 100876, China
2 State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, China
Abstract
A new two-stage carrier-phase recovery scheme using a combination of an optical pilot-aided algorithm with the crossed constellation transformation algorithm for either square-framed or non-square-framed M-level-quadrature amplitude modulation (QAM) Nyquist systems is proposed. It is verified in 32- and 128-QAM systems that it can provide high linewidth tolerance with little complexity.

Wenbo Zhang, Dongwei Pan, Xiaofei Su, Xiaoguang Zhang, Lixia Xi, Xianfeng Tang. Pilot-added carrier-phase recovery scheme for Nyquist M-ary quadrature amplitude modulation optical fiber communication system[J]. Chinese Optics Letters, 2016, 14(2): 020601.

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