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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 7 — Mar. 26, 2012
  • pp: 8155–8160

Influence of polarization state, baud rate and PMD on non-linear impairments in WDM systems with mixed PM (D)QPSK and OOK channels

Mohsan Niaz Chughtai, Marco Forzati, Jonas Mårtensson, and Danish Rafique  »View Author Affiliations

Optics Express, Vol. 20, Issue 7, pp. 8155-8160 (2012)

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In this paper we numerically investigate nonlinear impairments in a WDM system with mixed PM (D)QPSK and OOK channels. First we analyze the dependence of XPM and XPolM on SOP and baud rate in absence of PMD. In this case we find that the nonlinear impairments are highly dependent on relative SOP between the PM (D)QPSK and neighbouring OOK channels. The dependence on relative SOP is more pronounced in differential detection than in coherent detection. However, with increasing values of PMD this dependence decreases, and non-linear tolerance improves.

© 2012 OSA

OCIS Codes
(060.2330) Fiber optics and optical communications : Fiber optics communications
(190.3270) Nonlinear optics : Kerr effect

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: January 13, 2012
Revised Manuscript: February 29, 2012
Manuscript Accepted: March 16, 2012
Published: March 23, 2012

Mohsan Niaz Chughtai, Marco Forzati, Jonas Mårtensson, and Danish Rafique, "Influence of polarization state, baud rate and PMD on non-linear impairments in WDM systems with mixed PM (D)QPSK and OOK channels," Opt. Express 20, 8155-8160 (2012)

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