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Optics Letters

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  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 2 — Jan. 15, 2014
  • pp: 201–204

Blind equalization for dual-polarization two-subcarrier coherent QPSK-OFDM signals

Fan Li, Junwen Zhang, Jianjun Yu, and Xinying Li  »View Author Affiliations


Optics Letters, Vol. 39, Issue 2, pp. 201-204 (2014)
http://dx.doi.org/10.1364/OL.39.000201


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Abstract

Dual-polarization two-subcarrier coherent optical orthogonal frequency division multiplexing (CO-OFDM) transmission and reception is successfully demonstrated with blind equalization. A two-subcarrier quadrature phase shift keyed OFDM (QPSK-OFDM) signal can be equalized as a 9-ary quadrature amplitude modulation signal in the time domain with the cascaded multimodulus algorithm equalization method. The nonlinear effect resistance and transmission distance can be enhanced compared with the traditional CO-OFDM transmission system based on frequency equalization with training sequence.

© 2014 Optical Society of America

OCIS Codes
(060.2360) Fiber optics and optical communications : Fiber optics links and subsystems
(060.4510) Fiber optics and optical communications : Optical communications

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: August 28, 2013
Revised Manuscript: October 8, 2013
Manuscript Accepted: November 15, 2013
Published: January 3, 2014

Citation
Fan Li, Junwen Zhang, Jianjun Yu, and Xinying Li, "Blind equalization for dual-polarization two-subcarrier coherent QPSK-OFDM signals," Opt. Lett. 39, 201-204 (2014)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-39-2-201


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