Chromatic Dispersion Monitoring for DPSK Systems Using RF Power Spectrum

Jian Zhao, Zhaohui Li, Chao Lu, Pak Tao Lau, K. K. Qureshi, Hwa Yaw Tam

Research output: Journal article publicationJournal articleAcademic researchpeer-review

21 Citations (Scopus)


We have demonstrated a method for dispersion monitoring of differential phase-shift keying (DPSK) signals by measuring the power of its wide bandwidth radio frequency (RF) spectral components. In particular, the RF spectrum is found to increase with the increase of chromatic dispersion. The proposed method is investigated in detail both analytically and experimentally and results are in close agreement with each other.
Original languageEnglish
Pages (from-to)5704-5709
Number of pages6
JournalJournal of Lightwave Technology
Issue number24
Publication statusPublished - 15 Dec 2009


  • chromatic dispersion (CD)
  • Differential phase-shift keying (DPSK)
  • optical performance monitoring (OPM)

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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