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

Le, Son Thai, McCarthy, Mary E., Suibhne, Naoise Mac, Al-Khateeb, Mohammad A.Z., Giacoumidis, Elias, Doran, Nick, Ellis, Andrew D. and Turitsyn, Sergei K. (2015). Demonstration of phase-conjugated subcarrier coding for fiber nonlinearity compensation in CO-OFDM transmission. Journal of Lightwave Technology, 33 (11), pp. 2206-2212.


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.

Publication DOI:
Divisions: Engineering & Applied Sciences > Electrical, electronic & power engineering
Engineering & Applied Sciences > Institute of Photonics
Engineering & Applied 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
Full Text Link: http://ieeexplo ... rnumber=7060641
Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
Published Date: 2015-06-01
Authors: Le, Son Thai ( 0000-0002-3824-9456)
McCarthy, Mary E. ( 0000-0002-1348-1574)
Suibhne, Naoise Mac
Al-Khateeb, Mohammad A.Z. ( 0000-0002-1367-6777)
Giacoumidis, Elias
Doran, Nick
Ellis, Andrew D. ( 0000-0002-0417-0547)
Turitsyn, Sergei K. ( 0000-0003-0101-3834)



Version: Accepted Version

Export / Share Citation


Additional statistics for this record