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 . The simulation results verify the CD monitoring ability of the proposed scheme.
- Channel estimation
- Chromatic dispersion monitoring
- Electronic domain signal processing
- Inter symbol interference
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics