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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 9 — Apr. 28, 2008
  • pp: 6209–6215

Fiber nonlinearity precompensation for long-haul links using direct-detection optical OFDM

Liang B. Y. Du and Arthur J. Lowery  »View Author Affiliations


Optics Express, Vol. 16, Issue 9, pp. 6209-6215 (2008)
http://dx.doi.org/10.1364/OE.16.006209


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Abstract

The use of nonlinearity precompensation in direct-detection optical orthogonal frequency division multiplexed links is investigated by simulation. Because of the presence of a strong optical carrier its performance is poorer than for coherent systems: with compensation the signal quality is found to vary almost periodically across the signal band. We propose and explain the operation of two optical, one electrical and one computational method of removing this periodic variation. Optical filtering of one sideband at the receiver is most effective, but a substantial improvement can be obtained by a simple modification to the precompensation algorithm.

© 2008 Optical Society of America

OCIS Codes
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(060.4080) Fiber optics and optical communications : Modulation

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: February 22, 2008
Revised Manuscript: April 7, 2008
Manuscript Accepted: April 14, 2008
Published: April 18, 2008

Citation
Liang B. Y. Du and Arthur J. Lowery, "Fiber nonlinearity precompensation for long-haul links using direct-detection optical OFDM," Opt. Express 16, 6209-6215 (2008)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-16-9-6209


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References

  1. A. J. Lowery and J. Armstrong, "Orthogonal frequency division multiplexing for dispersion compensation of long-haul optical systems," Opt. Express 14, 2079-2084 (2006). [CrossRef] [PubMed]
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  3. B. J. C. Schmidt, A. J. Lowery and J. Armstrong, "Experimental demonstrations of 20 Gbit/s direct-detection optical OFDM and 12 Gbit/s with a colorless transmitter," in Optical Fiber Communication Conference and Exposition and The National Fiber Optic Engineers Conference, OSA Technical Digest Series (CD) (Optical Society of America, 2007), paper PDP18. http://www.opticsinfobase.org/abstract.cfm?URI=OFC-2007-PDP18 [PubMed]
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  7. A. J. Lowery, "Fiber nonlinearity mitigation in optical links that use OFDM for dispersion compensation," IEEE Photon. Technol. Lett. 19,1556-1558 (2007). [CrossRef]
  8. A. J. Lowery, "Fiber nonlinearity pre- and post-compensation for long-haul optical links using OFDM," Opt. Express 15, 12965-12970 (2007). [CrossRef] [PubMed]
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  10. A. J. Lowery, "Amplified-spontaneous noise limit of optical OFDM lightwave systems," Opt. Express 16, 860-865 (2008). [CrossRef] [PubMed]
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