Journal of the Optical Society of Korea

Optical Society of Korea (한국광학회)
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An Electronic Domain Chromatic Dispersion Monitoring Scheme Insensitive to OSNR Using Kurtosis

  • Kim, Kyoung-Soo (Division of Computer and Communication Engineering, Korea University) ;
  • Lee, Jae-Hoon (Division of Computer and Communication Engineering, Korea University) ;
  • Chung, Won-Zoo (Division of Computer and Communication Engineering, Korea University) ;
  • Kim, Sung-Chul (Department of Communication Engineering, Myongji University)
  • Received : 2008.09.29
  • Accepted : 2008.11.27
  • Published : 2008.12.25
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Abstract

In this paper we present an electronic domain solution for chromatic dispersion (CD) monitoring algorithm based on the estimated time domain channel in electronic domain using channel estimation methods. The proposed scheme utilizes kurtosis as a CD measurement, directly computed from the estimated inter-symbol-interference (ISI) channel due to the CD distortion. Hence, the proposed scheme exhibits robust performance under OSNR variation, in contrast to the existing electronic domain approach based on minimum mean squared error (MMSE) fractionally-spaced equalizer taps [1]. The simulation results verify the CD monitoring ability of the proposed scheme.

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References

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