Chromatic dispersion monitoring for multiple modulation formats and data rates using sideband optical filtering and asynchronous amplitude sampling technique

F. N. Khan, Pak Tao Lau, Chao Lu, Ping Kong Alexander Wai

Research output: Journal article publicationJournal articleAcademic researchpeer-review

16 Citations (Scopus)


We propose and experimentally demonstrate a low-cost technique for chromatic dispersion (CD) monitoring in various return-to-zero (RZ) amplitude and phase-modulated systems at different data rates by analyzing the asynchronously sampled amplitudes of two vestigial sideband (VSB) signals. The proposed technique graphically represents the CD induced-effects in a scatter plot of which a parameter is extracted to monitor CD and is resilient to OSNR variations. Simulations and experimental results demonstrate good monitoring ranges and sensitivities for various modulation formats at different data rates without any modification of the monitoring hardware. The influence of first-order polarization-mode dispersion (PMD) on the accuracy of proposed monitoring technique is also investigated.
Original languageEnglish
Pages (from-to)1007-1015
Number of pages9
JournalOptics Express
Issue number2
Publication statusPublished - 17 Jan 2011

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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