Adaptive chromatic dispersion compensation for coherent communication systems using delay-tap sampling technique

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

Research output: Journal article publicationJournal articleAcademic researchpeer-review

42 Citations (Scopus)


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.
Original languageEnglish
Article number5764498
Pages (from-to)1016-1018
Number of pages3
JournalIEEE Photonics Technology Letters
Issue number14
Publication statusPublished - 11 Jul 2011


  • Chromatic dispersion (CD) compensation
  • coherent detection
  • delay-tap sampling
  • digital signal processing (DSP)

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

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