Time-resolved Q-factor measurement and its application in performance analysis of 42.6 Gbit/s packets generated by SGDBR lasers

Arvind K. Mishra, Andrew D. Ellis, Liam P. Barry

    Research output: Contribution to journalArticlepeer-review

    Abstract

    We demonstrate a novel time-resolved Q-factor measurement technique and demonstrate its application in the analysis of optical packet switching systems with high information spectral density. For the first time, we report the time-resolved Q-factor measurement of 42.6 Gbit/s AM-PSK and DQPSK modulated packets, which were generated by a SGDBR laser under wavelength switching. The time dependent degradation of Q-factor performance during the switching transient was analyzed and was found to be correlated with different laser switching characteristics in each case.
    Original languageEnglish
    Article number5398947
    Pages (from-to)1144-1151
    Number of pages8
    JournalJournal of Lightwave Technology
    Volume28
    Issue number8
    DOIs
    Publication statusPublished - 15 Apr 2010

    Keywords

    • DQPSK
    • SGDBR laser
    • optical packet switching , wavelength-switching characteristics

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