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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 5 — Mar. 1, 2010
  • pp: 4859–4866

A hybrid IQ imbalance compensation method for optical OFDM transmission

Abdullah Al Amin, Sander L. Jansen, Hidenori Takahashi, Itsuro Morita, and Hideaki Tanaka  »View Author Affiliations


Optics Express, Vol. 18, Issue 5, pp. 4859-4866 (2010)
http://dx.doi.org/10.1364/OE.18.004859


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Abstract

Transmitter and receiver IQ imbalance causes image interference that degrades performance in high capacity and high spectral efficiency optical orthogonal frequency division multiplexing (OFDM) schemes. Digital compensation is an attractive method to relax component specifications. In this paper we report the details of a hybrid compensation method for IQ imbalance compensation, comprising of orthogonal training symbol-based method for transmitter-side compensation and an iterative image reduction-based method for receiver-side imbalance compensation. We demonstrate performance improvement using the hybrid method in presence of frequency dependent imbalance by both simulation and back-to-back direct detection optical OFDM experiment. We report on the tolerable limit of transmitter IQ imbalance under presence of carrier frequency offset.

© 2010 OSA

OCIS Codes
(060.2330) Fiber optics and optical communications : Fiber optics communications
(060.4080) Fiber optics and optical communications : Modulation

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: December 24, 2009
Revised Manuscript: January 26, 2010
Manuscript Accepted: February 10, 2010
Published: February 24, 2010

Citation
Abdullah Al Amin, Sander L. Jansen, Hidenori Takahashi, Itsuro Morita, and Hideaki Tanaka, "A hybrid IQ imbalance compensation method for optical OFDM transmission," Opt. Express 18, 4859-4866 (2010)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-18-5-4859


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References

  1. S. L. Jansen, I. Morita, T. C. W. Schenk, and H. Tanaka, “121.9-Gb/s PDM-OFDM transmission with 2 b/s/Hz spectral efficiency over 1,000 km of SSMF,” J. Lightwave Technol. 27(3), 177–188 (2009). [CrossRef]
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