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Journal of Optical Communications and Networking

Journal of Optical Communications and Networking

  • Editors: K. Bergman and V. Chan
  • Vol. 3, Iss. 6 — Jun. 1, 2011
  • pp: 533–541

Optical Front-End for Soft-Decision LDPC Codes in Optical Communication Systems

M. N. Sakib, V. Mahalingam, W. J. Gross, and O. Liboiron-Ladouceur  »View Author Affiliations

Journal of Optical Communications and Networking, Vol. 3, Issue 6, pp. 533-541 (2011)

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A low-complexity soft-decision 12.5 Gb/s optical receiver for decoding low-density parity-check codes reusing conventional hard-decision receivers is investigated. The simulated and experimental results show that the proposed optical receiver exhibits coding gains of 2.75 and 6.73 dB for post-forward-error-correction bit error rates of 10 4 and 10 9 , respectively, over a hard-decision uncoded system for a 60 km single-mode optical fiber transmission. The soft-decision circuitry consumes approximately 5 W and is optimized to provide two confidence levels, one above and one below the hard-decision levels.

© 2011 OSA

OCIS Codes
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(060.4510) Fiber optics and optical communications : Optical communications

ToC Category:
Research Papers

Original Manuscript: February 7, 2011
Revised Manuscript: May 11, 2011
Manuscript Accepted: May 12, 2011
Published: May 30, 2011

Virtual Issues
July 1, 2011 Spotlight on Optics

M. N. Sakib, V. Mahalingam, W. J. Gross, and O. Liboiron-Ladouceur, "Optical Front-End for Soft-Decision LDPC Codes in Optical Communication Systems," J. Opt. Commun. Netw. 3, 533-541 (2011)

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