Adaptive Chromatic Dispersion Compensation for Coherent Communication Systems Using Delay-Tap Sampling Technique

Author

Wang, Dawei ; Lu, Chao ; Lau, Alan Pak Tao ; He, Sailing

Author_Institution

Dept. of Opt. Eng., Zhejiang Univ., Hangzhou, China

Volume

23

Issue

14

fYear

2011

fDate

7/15/2011 12:00:00 AM

Firstpage

1016

Lastpage

1018

Abstract

A fast and low-complexity adaptive chromatic dispersion (CD) compensation algorithm based on delay-tap sampling technique for optical coherent systems is proposed. By generating a delay-tap plot from the signal powers after an adaptive CD equalizer, a parameter can be extracted from the delay-tap plot which can be used to estimate CD accurately. Simulation results for coherent polarization-division-multiplexed (PDM) quaternary phase-shift keying (QPSK) as well as 16-quadrature amplitude modulation (QAM) systems with various pulse shapes demonstrate that high CD estimation accuracies using relatively few data symbols can be achieved in presence of other transmission impairments.

Keywords

equalisers; multiplexing; quadrature amplitude modulation; quadrature phase shift keying; adaptive CD equalizer; adaptive chromatic dispersion compensation algorithm; coherent communication systems; delay-tap sampling; polarization-division-multiplexed; quadrature amplitude modulation; quaternary phase-shift keying; Chromatic dispersion; Equalizers; Estimation; Optical pulse shaping; Optical receivers; Optical signal processing; Phase shift keying; Chromatic dispersion (CD) compensation; coherent detection; delay-tap sampling; digital signal processing (DSP);

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2011.2151280

Filename

5764498