Interchannel nonlinearities in coherent polarization-division-multiplexed quadrature-phase-shift-keying systems

被引：53
|
作者：
Xie, Chongjin [1 ]
机构：
[1] Bell Laboratories, Alcatel-Lucent, Holmdel, NJ 07733, United States
来源：
IEEE Photonics Technology Letters | 2009年 / 21卷 / 05期
关键词：
Pulse width modulation - Coherent scattering - Nonlinear optics - Optical fiber communication - Quadrature phase shift keying - Optical fibers - Phase shift;
D O I：
10.1109/LPT.2008.2010714
中图分类号：
学科分类号：
摘要：
We study with simulations interchannel nonlinear effects on a 42.8-Gb/s coherent polarization-division-multiplexed quadrature-phase-shift-keying (PDM-QPSK) system with and without dispersion management. We find that interchannel cross-phase-modulation induced nonlinear polarization scattering can severely degrade the performance of a dispersion-managed PDM-QPSK system. We demonstrate that the time-interleaved return-to-zero PDM-QPSK, where the symbols of the two polarizations are shifted by half a symbol in time, can significantly suppress the nonlinear polarization scattering in dispersion managed systems, and make systems with inline dispersion-compensation fiber (DCF) achieve better performance than those without DCF. © 2009 IEEE.
引用
收藏
页码：274 / 276
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