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
收藏
页码：21717 / 21729
页数：13
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