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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 25 — Dec. 3, 2012
  • pp: 27596–27602

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

Xiaogang Yi, Jian Wu, Yan Li, Wei Li, Xiaobin Hong, Hongxiang Guo, Yong Zuo, and Jintong Lin  »View Author Affiliations

Optics Express, Vol. 20, Issue 25, pp. 27596-27602 (2012)

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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.

© 2012 OSA

OCIS Codes
(060.1660) Fiber optics and optical communications : Coherent communications
(060.2330) Fiber optics and optical communications : Fiber optics communications
(060.4370) Fiber optics and optical communications : Nonlinear optics, fibers

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: October 8, 2012
Revised Manuscript: November 14, 2012
Manuscript Accepted: November 16, 2012
Published: November 28, 2012

Xiaogang Yi, Jian Wu, Yan Li, Wei Li, Xiaobin Hong, Hongxiang Guo, Yong Zuo, and Jintong Lin, "Nonlinear signal-noise interactions in dispersion managed coherent PM-QPSK systems in the presence of PMD," Opt. Express 20, 27596-27602 (2012)

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