Compensation of nonlinear fibre impairments in coherent systems employing spectrally efficient modulation formats

Abstract

We investigate electronic mitigation of linear and non-linear fibre impairments and compare various digital signal processing techniques, including electronic dispersion compensation (EDC), single-channel back-propagation (SC-BP) and back-propagation with multiple channel processing (MC-BP) in a nine-channel 112 Gb/s PM-mQAM (m=4,16) WDM system, for reaches up to 6,320 km. We show that, for a sufficiently high local dispersion, SC-BP is sufficient to provide a significant performance enhancement when compared to EDC, and is adequate to achieve BER below FEC threshold. For these conditions we report that a sampling rate of two samples per symbol is sufficient for practical SC-BP, without significant penalties.

Divisions: Engineering & Applied Sciences > Electrical, Electronic & Power Engineering
Additional Information: Copyright ©2008 IEICE� Rafique, D., Zhao, J. A., & Ellis, A. D. (2011). Compensation of nonlinear fibre impairments in coherent systems employing spectrally efficient modulation formats. IEICE transactions on communications, E94-B(7), 1815-1822.
Uncontrolled Keywords: optical fibre communication,coherent communication,digital signal processing,nonlinear optics,Electrical and Electronic Engineering,Computer Networks and Communications,Software
Full Text Link: http://search.i ... 11&lang=E&abst=
Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
PURE Output Type: Article
Published Date: 2011-07-01
Authors: Rafique, Danish
Zhao, Jian A.
Ellis, Andrew D. ( 0000-0002-0417-0547)

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