Power pre-emphasis for suppression of FWM in coherent optical OFDM transmission


Four-wave-mixing (FWM) due to the fiber nonlinearity is a major limiting factor in coherent optical OFDM transmission. We propose to apply power pre-emphasis, i.e. to allocate the transmitted power nonuniformly among subcarriers in order to suppress the FWM impairment. The proposed technique was numerically investigated for both single channel 15.6 Gbs CO-OFDM transmissions and 7-channel WDM transmissions, showing that up to 1 dB improvement in the system's Qfactor can be achieved without considering sophisticated power loading algorithms developed for wireless communications.

Publication DOI: https://doi.org/10.1364/OE.22.007238
Divisions: College of Engineering & Physical Sciences > Adaptive communications networks research group
College of Engineering & Physical Sciences > Aston Institute of Photonics Technology (AIPT)
College of Engineering & Physical Sciences > Systems analytics research institute (SARI)
Additional Information: © 2014 Optical Society of America This paper was published in Optics express and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://www.opticsinfobase.org/oe/abstract.cfm?uri=oe-22-6-7238. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.
Uncontrolled Keywords: OFDM coherent
Publication ISSN: 1094-4087
Last Modified: 13 Mar 2024 08:12
Date Deposited: 25 Jun 2014 08:20
Full Text Link: http://www.opti ... ri=oe-22-6-7238
Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
PURE Output Type: Article
Published Date: 2014-03-24
Authors: Le, Thai Son (ORCID Profile 0000-0002-3824-9456)
Blow, Keith (ORCID Profile 0000-0002-7859-3438)
Turitsyn, Sergei (ORCID Profile 0000-0003-0101-3834)



Version: Published Version

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