Demonstration of phase-conjugated subcarrier coding for fiber nonlinearity compensation in CO-OFDM transmission


In this paper, we demonstrate through computer simulation and experiment a novel subcarrier coding scheme combined with pre-electrical dispersion compensation (pre-EDC) for fiber nonlinearity mitigation in coherent optical orthogonal frequency division multiplexing (CO-OFDM) systems. As the frequency spacing in CO-OFDM systems is usually small (tens of MHz), neighbouring subcarriers tend to experience correlated nonlinear distortions after propagation over a fiber link. As a consequence, nonlinearity mitigation can be achieved by encoding and processing neighbouring OFDM subcarriers simultaneously. Herein, we propose to adopt the concept of dual phase conjugated twin wave for CO-OFDM transmission. Simulation and experimental results show that this simple technique combined with 50% pre-EDC can effectively offer up to 1.5 and 0.8 dB performance gains in CO-OFDM systems with BPSK and QPSK modulation formats, respectively.

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Divisions: College of Engineering & Physical Sciences > Aston Institute of Photonics Technology (AIPT)
College of Engineering & Physical Sciences > Systems analytics research institute (SARI)
Additional Information: © 2015 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. Funding: Research funded by Sterlite Technologies and Finisar; European Commission's 7th Framework Programme (258033, 318137, 318415); and EPSRC (EP/J017582/1, EP/L000091/1).
Uncontrolled Keywords: coherent detection,coherent optical transmission,nonlinearity mitigation,orthogonal frequency division multiplexing.,Atomic and Molecular Physics, and Optics
Publication ISSN: 0733-8724
Last Modified: 27 Jun 2024 08:39
Date Deposited: 19 Aug 2015 13:45
Full Text Link: http://ieeexplo ... rnumber=7060641
Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
PURE Output Type: Article
Published Date: 2015-06-01
Published Online Date: 2015-03-13
Authors: Le, Son Thai (ORCID Profile 0000-0002-3824-9456)
McCarthy, Mary E. (ORCID Profile 0000-0002-1348-1574)
Suibhne, Naoise Mac
Al-Khateeb, Mohammad A.Z. (ORCID Profile 0000-0002-1367-6777)
Giacoumidis, Elias
Doran, Nick (ORCID Profile 0000-0001-8309-8805)
Ellis, Andrew D. (ORCID Profile 0000-0002-0417-0547)
Turitsyn, Sergei K. (ORCID Profile 0000-0003-0101-3834)



Version: Accepted Version

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