Ultrafast all-optical clock recovery based on phase-only linear optical filtering

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    We report on a novel, efficient technique for all-optical clock recovery from RZ-OOK data signals based on spectral phase-only (all-pass) optical filtering. This technique significantly enhances both the recovered optical clock quality and energy efficiency in comparison with conventional amplitude optical filtering approaches using a Fabry-Perot filter. The proposed concept is validated through recovery of the optical clock from a 640 Gbit/s RZ-OOK data signal using a commercial linear optical waveshaper. (C) 2014 Optical Society of America
    Original languageEnglish
    JournalOptics Letters
    Issue number9
    Pages (from-to)2815-2818
    Number of pages4
    Publication statusPublished - 2014


    • OPTICS
    • Atomic clocks
    • Energy efficiency
    • Optical variables measurement
    • All pass
    • All-optical clock recovery
    • Data signals
    • Fabry-Perot filters
    • Linear optical
    • Optical clocks
    • Optical filtering
    • Ultra-fast
    • Optical filters


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