Title

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

Authors

Authors

E. F. Mateo; X. A. Zhou;G. F. Li

Comments

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Abbreviated Journal Title

Opt. Express

Keywords

IMPAIRMENT COMPENSATION; CHROMATIC DISPERSION; TRANSMISSION; OFDM; Optics

Abstract

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

Journal Title

Optics Express

Volume

19

Issue/Number

2

Publication Date

1-1-2011

Document Type

Article

Language

English

First Page

570

Last Page

583

WOS Identifier

WOS:000286314600018

ISSN

1094-4087

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