Nonlinear compensation and crosstalk suppression for 4 x 160.8Gb/s WDM PDM-QPSK signal with heterodyne detection

被引：12
作者：
Zhang, Junwen [1 ,2 ,3 ]
Yu, Jianjun [1 ]
Chi, Nan [1 ]
Dong, Ze [2 ,3 ]
Li, Xinying [1 ]
机构：
[1] Fudan Univ, Dept Commun Sci & Engn, Shanghai 200433, Peoples R China
[2] ZTE, Morristown, NJ 07960 USA
[3] Georgia Inst Technol, Sch ECE, Atlanta, GA 30332 USA
来源：
OPTICS EXPRESS | 2013年 / 21卷 / 08期
关键词：
COHERENT DETECTION; TRANSMISSION;
D O I：
10.1364/OE.21.009230
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We experimentally investigate digital intra-channel nonlinear impairment compensation and inter-channel crosstalk suppression for 4 x 160.8-Gb/s wavelength division multiplexing (WDM) polarization division multiplexing quadrature phase shift keying (PDM-QPSK) transmission over 1300-km single-mode fiber-28 (SMF-28) on a 50-GHz grid with the spectral efficiency of 3.21b/s/Hz, adopting simplified heterodyne coherent detection. By using nonlinear compensation based on DBP with crosstalk suppression based on post filter and maximum likelihood sequence estimation (PF&MLSE), the BER has been improved from 1.0 x 10(-3) to 3.5 x 10(-4) for 4 x 160.8Gb/s WDM PDM-QPSK with heterodyne detection after 1300km SMF-28 transmission. (C) 2013 Optical Society of America
引用
收藏
页码：9230 / 9237
页数：8
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