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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 22, Iss. 6 — Mar. 24, 2014
  • pp: 7238–7248

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

Son Thai Le, Keith Blow, and Sergei Turitsyn  »View Author Affiliations


Optics Express, Vol. 22, Issue 6, pp. 7238-7248 (2014)
http://dx.doi.org/10.1364/OE.22.007238


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Abstract

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 non-uniformly 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 Q-factor can be achieved without considering sophisticated power loading algorithms developed for wireless communications.

© 2014 Optical Society of America

OCIS Codes
(060.2330) Fiber optics and optical communications : Fiber optics communications
(060.4370) Fiber optics and optical communications : Nonlinear optics, fibers

ToC Category:
Optical Communications

History
Original Manuscript: January 30, 2014
Revised Manuscript: March 13, 2014
Manuscript Accepted: March 14, 2014
Published: March 20, 2014

Citation
Son Thai Le, Keith Blow, and Sergei Turitsyn, "Power pre-emphasis for suppression of FWM in coherent optical OFDM transmission," Opt. Express 22, 7238-7248 (2014)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-22-6-7238


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