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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 10 — May. 9, 2011
  • pp: 9453–9460

Compensation of intra-channel nonlinear fibre impairments using simplified digital back-propagation algorithm

Danish Rafique, Marco Mussolin, Marco Forzati, Jonas Mårtensson, Mohsan N. Chugtai, and Andrew D. Ellis  »View Author Affiliations

Optics Express, Vol. 19, Issue 10, pp. 9453-9460 (2011)

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We investigate a digital back-propagation simplification method to enable computationally-efficient digital nonlinearity compensation for a coherently-detected 112 Gb/s polarization multiplexed quadrature phase shifted keying transmission over a 1,600 km link (20x80km) with no inline compensation. Through numerical simulation, we report up to 80% reduction in required back-propagation steps to perform nonlinear compensation, in comparison to the standard back-propagation algorithm. This method takes into account the correlation between adjacent symbols at a given instant using a weighted-average approach, and optimization of the position of nonlinear compensator stage to enable practical digital back-propagation.

© 2011 OSA

OCIS Codes
(060.1660) Fiber optics and optical communications : Coherent communications
(060.2330) Fiber optics and optical communications : Fiber optics communications
(190.4370) Nonlinear optics : Nonlinear optics, fibers

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: February 17, 2011
Revised Manuscript: March 16, 2011
Manuscript Accepted: March 18, 2011
Published: April 29, 2011

Danish Rafique, Marco Mussolin, Marco Forzati, Jonas Mårtensson, Mohsan N. Chugtai, and Andrew D. Ellis, "Compensation of intra-channel nonlinear fibre impairments using simplified digital back-propagation algorithm," Opt. Express 19, 9453-9460 (2011)

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