Low-complexity and phase noise tolerant carrier phase estimation for dual-polarization 16-QAM systems

被引：68

作者：

Gao, Yuliang ^{[1
]}

Lau, Alan Pak Tao ^{[1
]}

Yan, Shuangyi ^{[2
]}

Lu, Chao ^{[2
]}

机构：

[1] Hong Kong Polytech Univ, Photon Res Ctr, Dept Elect Engn, Kowloon, Hong Kong, Peoples R China

[2] Hong Kong Polytech Univ, Photon Res Ctr, Elect & Informat Engn Dept, Kowloon, Hong Kong, Peoples R China

来源：

OPTICS EXPRESS | 2011年 / 19卷 / 22期

关键词：

COHERENT DETECTION; RECOVERY; QAM; TRANSMISSION; RECEIVER;

D O I：

10.1364/OE.19.021717

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A low-complexity feed-forward carrier phase estimation (CPE) technique is presented for dual-polarization (DP)-16-QAM transmission systems. By combining QPSK partitioning, maximum likelihood (ML) detection and phase offset estimation between signals in different polarizations, simulation and experimental results for a 200Gb/s DP-16-QAM system demonstrate similar linewidth tolerance to the best feed-forward CPE reported to date while the computational complexity is at least three times lower compared with other simplified feed-forward CPE techniques. (C)2011 Optical Society of America

引用

页码：21717 / 21729

页数：13

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