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

Son Thai Le; Mary E. McCarthy; Naoise Mac Suibhne; Mohammad A.Z. Al-Khateeb; Elias Giacoumidis; Nick Doran; Andrew D. Ellis; Sergei K. Turitsyn

doi:10.1109/JLT.2015.2408995

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

Son Thai Le, Mary E. McCarthy, Naoise Mac Suibhne, Mohammad A.Z. Al-Khateeb, Elias Giacoumidis, Nick Doran, Andrew D. Ellis, Sergei K. Turitsyn

Aston Institute of Photonic Technologies (AiPT)

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

Abstract

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.

Original language	English
Pages (from-to)	2206-2212
Number of pages	7
Journal	Journal of Lightwave Technology
Volume	33
Issue number	11
Early online date	13 Mar 2015
DOIs	https://doi.org/10.1109/JLT.2015.2408995
Publication status	Published - 1 Jun 2015

Bibliographical note

© 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).

Keywords

coherent detection
coherent optical transmission
nonlinearity mitigation
orthogonal frequency division multiplexing.

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10.1109/JLT.2015.2408995

Phase-conjugated subcarrier coding for fiber nonlinearity compensation
© 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.
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http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=7060641

Cite this

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title = "Demonstration of phase-conjugated subcarrier coding for fiber nonlinearity compensation in CO-OFDM transmission",

abstract = "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.",

keywords = "coherent detection, coherent optical transmission, nonlinearity mitigation, orthogonal frequency division multiplexing.",

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AU - Giacoumidis, Elias

AU - Doran, Nick

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AU - Turitsyn, Sergei K.

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

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Keywords

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