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

Danish Rafique; Marco Mussolin; Marco Forzati; Jonas Mårtensson; Mohsan N. Chugtai; Andrew D. Ellis

doi:10.1364/OE.19.009453

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

Danish Rafique, Marco Mussolin, Marco Forzati, Jonas Mårtensson, Mohsan N. Chugtai, Andrew D. Ellis

Electrical and Electronic Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

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.

Original language	English
Pages (from-to)	9453-9460
Number of pages	8
Journal	Optics Express
Volume	19
Issue number	10
DOIs	https://doi.org/10.1364/OE.19.009453
Publication status	Published - 9 May 2011

Bibliographical note

© 2011 OSA
This paper was published in Optics Express and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://dx.doi.org/10.1364/OE.19.009453. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.

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10.1364/OE.19.009453

Compensation of intra-channel nonlinear fibre impairments using simplified digital back-propagation algorithm
© 2011 OSA This paper was published in Optics Express and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://dx.doi.org/10.1364/OE.19.009453. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.
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http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-19-10-9453

Cite this

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abstract = "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.",

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AU - Chugtai, Mohsan N.

AU - Ellis, Andrew D.

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

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