TY - JOUR
T1 - Phase-conjugated pilots for fibre nonlinearity compensation in CO-OFDM transmission
AU - Le, Thai Son
AU - McCarthy, Mary E.
AU - Suibhne, Naoise Mac
AU - Ellis, Andrew D.
AU - Turitsyn, Sergei K.
N1 - © 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: Sterlite Technologies and Finisar; European Commission (258033 (MODE-GAP), 318415 (FOX-C)); EPSRC (EP/J017582/1, EP/L000091/1).
PY - 2015/4/1
Y1 - 2015/4/1
N2 - In this paper, we demonstrate a novel fiber nonlinearity compensation technique for coherent optical orthogonal frequency-division multiplexing (CO-OFDM) systems based on the transmission of phase-conjugated pilots (PCPs). In this scheme, a portion of OFDM subcarriers (up to 50%) is transmitted with its phase conjugates, which is used at the receiver to estimate the nonlinear distortions in the respective subcarriers and other subcarriers, which are not accompanied by PCPs. Simulation and experimental results show that by varying the PCP overhead, a performance improvement up to 4 dB can be achieved. In addition, the proposed technique can be effectively applied in both single polarization and polarization-division multiplexed systems, in both single channel and wavelength-division multiplexing systems, thus, offering highest flexibility in implementations.
AB - In this paper, we demonstrate a novel fiber nonlinearity compensation technique for coherent optical orthogonal frequency-division multiplexing (CO-OFDM) systems based on the transmission of phase-conjugated pilots (PCPs). In this scheme, a portion of OFDM subcarriers (up to 50%) is transmitted with its phase conjugates, which is used at the receiver to estimate the nonlinear distortions in the respective subcarriers and other subcarriers, which are not accompanied by PCPs. Simulation and experimental results show that by varying the PCP overhead, a performance improvement up to 4 dB can be achieved. In addition, the proposed technique can be effectively applied in both single polarization and polarization-division multiplexed systems, in both single channel and wavelength-division multiplexing systems, thus, offering highest flexibility in implementations.
KW - coherent detection
KW - coherent optical transmission
KW - Nonlinearity mitigation
KW - orthogonal frequency division multiplexing
UR - http://www.scopus.com/inward/record.url?scp=84925047601&partnerID=8YFLogxK
UR - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=ORCID&SrcApp=OrcidOrg&DestLinkType=FullRecord&DestApp=WOS_CPL&KeyUT=WOS:000351351300006&KeyUID=WOS:000351351300006
U2 - 10.1109/JLT.2015.2388854
DO - 10.1109/JLT.2015.2388854
M3 - Article
AN - SCOPUS:84925047601
SN - 0733-8724
VL - 33
SP - 1308
EP - 1314
JO - Journal of Lightwave Technology
JF - Journal of Lightwave Technology
IS - 7
ER -