Nonlinear signal-noise interactions in dispersion managed coherent PM-QPSK systems in the presence of PMD | Zendy

Xiaogang Yi | Zendy; Jian Wu | Zendy; Yan Li | Zendy; Wei Li | Zendy; Xiaobin Hong | Zendy; Hongxiang Guo | Zendy; Yong Zuo | Zendy; Jintong Lin | Zendy

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Nonlinear signal-noise interactions in dispersion managed coherent PM-QPSK systems in the presence of PMD

Author(s) -

Xiaogang Yi,

Jian Wu,

Yan Li,

Wei Li,

Xiaobin Hong,

Hongxiang Guo,

Yong Zuo,

Jintong Lin

Publication year - 2012

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.20.027596

Subject(s) - phase shift keying , polarization mode dispersion , physics , optics , phase noise , polarization division multiplexing , keying , bit error rate , amplified spontaneous emission , transmission (telecommunications) , quadrature amplitude modulation , multiplexing , nonlinear system , dispersion (optics) , wavelength division multiplexing , telecommunications , channel (broadcasting) , computer science , wavelength , laser , quantum mechanics

Considering the polarization mode dispersion(PMD), the transmission penalty induced by nonlinear signal-noise interactions (NSNI) between the amplified spontaneous emission noise (ASE) and the information signal is investigated numerically for 40(100)G dispersion-managed(DM) polarization-multiplexed quadrature phase-shift keying (PM-QPSK) systems. We show that for single-channel PM-QPSK systems, PMD is helpful to reduce the NSNI-induced penalty. For multi-channel PM-QPSK system, however, the NSNI-induced nonlinear penalty is significantly enhanced by PMD, especially at low bit-rate. Our results show that due to the NSNI, the reduction of allowed input power that gives 1-dB Q penalty after 1600-km nonlinear transmission will increase from 1dB without PMD to 3.7dB with PMD for 42.8-Gbit/s coherent return-to-zero (RZ)-PM-QPSK systems.

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