Enhanced frequency-domain fractionally spaced equalization for coherent optical transmission system with colored noise

被引：2

作者：

Hao, Ming ^{[1
,2
]}

Yan, Lianshan ^{[1
]}

Yi, Anlin ^{[1
]}

Jiang, Lin ^{[1
]}

Pan, Yan ^{[1
]}

Pan, Wei ^{[1
]}

Luo, Bin ^{[1
]}

机构：

[1] Southwest Jiaotong Univ, Sch Informat Sci & Technol, Ctr Informat Photon & Commun, Chengdu, Peoples R China

[2] Sichuan Univ Sci & Engn, Sch Automat & Informat Engn, Zigong, Peoples R China

来源：

OPTICAL ENGINEERING | 2017年 / 56卷 / 06期

基金：

中国国家自然科学基金;

关键词：

fiber optic communication; frequency-domain equalization; colored noise; polynomial fitting; SIGNALS;

D O I：

10.1117/1.OE.56.6.066116

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

An enhanced minimum mean-square-error (MMSE) frequency-domain (FD) fractionally spaced equalizer (FSE) for polarization demultiplexing is proposed in the presence of colored noise. The 2-norm of the estimated channel matrix and polynomial fitting of equalization coefficients are introduced to mitigate the colored noise without requiring knowledge of the optical and electrical filtering. Simulation results show that similar to 3-dB improvement of equalization performance is achieved compared to conventional MMSE FD-FSE in an 8 x 112-Gbit/s wavelength-division multiplexing polarization-division multiplexing-quadrature phase shift keying transmission system over a 1200-km single mode fiber link. (C) 2017 Society of Photo-Optical Instrumentation Engineers (SPIE)

引用

页数：6

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