Improved digital backward propagation for the compensation of inter-channel nonlinear effects in polarization-multiplexed WDM systems

被引：41
|
作者：
Mateo, Eduardo F. [1 ]
Zhou, Xiang [2 ]
Li, Guifang [1 ]
机构：
[1] Univ Cent Florida, CREOL, Coll Opt & Photon, Orlando, FL 32816 USA
[2] AT&T Labs Res, Middletown, NJ 07748 USA
来源：
OPTICS EXPRESS | 2011年 / 19卷 / 02期
关键词：
IMPAIRMENT COMPENSATION; CHROMATIC DISPERSION; TRANSMISSION; OFDM;
D O I：
10.1364/OE.19.000570
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
An improved split-step method (SSM) for digital backward propagation (DBP) applicable to wavelength-division multiplexed (WDM) transmission with polarization-division multiplexing (PDM) is presented. A coupled system of nonlinear partial differential equations, derived from the Manakov equations, is used for DBP. The above system enables the implementation of DBP on a channel-by-channel basis, where only the effect of phase-mismatched four-wave mixing (FWM) is neglected. A novel formulation of the SSM for PDM-WDM systems is presented where new terms are included in the nonlinear step to account for inter-polarization mixing effects. In addition, the effect of inter-channel walk-off is included. This substantially reduces the computational load compared to the conventional SSM. (C) 2011 Optical Society of America
引用
收藏
页码：570 / 583
页数：14
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