Demonstration of CoWDM using DPSK modulator array with injection-locked lasers

Selwan K. Ibrahim, Andrew D. Ellis, Fatima C. Garcia Gunning, F.H. Peters

    Research output: Contribution to journalArticlepeer-review

    Abstract

    A practical implementation of coherent wavelength division multiplexing (CoWDM) is demonstrated for the first time using injection-locked lasers and a DPSK modulator array. For a 31.99 Gbit/s system (three subcarriers at 10.664 Gbit/s) the null-to-null spectral bandwidth was only 42.656 GHz and the average receiver sensitivity measured was -33.5 dBm when all subcarrier phases were optimised.
    Original languageEnglish
    Pages (from-to)150-152
    Number of pages3
    JournalElectronics letters
    Volume46
    Issue number2
    DOIs
    Publication statusPublished - 21 Jan 2010

    Bibliographical note

    This paper is a postprint of a paper submitted to and accepted for publication in Electronics Letters and is subject to Institution of Engineering and Technology Copyright. The copy of record is available at IET Digital Library.

    Keywords

    • optical communication equipment
    • optical modulation
    • wavelength division multiplexing
    • optical arrays
    • differential phase shift keying
    • high-speed optical techniques
    • laser mode locking
    • distributed feedback lasers

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