All-optical flip-flop based on coupled-mode dbr laser diode for optically clocked operation

Masaru Zaitsu, Akio Higo, Takuo Tanemura, Yoshiaki Nakano

    Research output: Contribution to journalArticlepeer-review

    1 Citation (Scopus)


    A novel type of optically clocked all-optical flip-flop based on a coupled-mode distributed Bragg reflector laser diode is proposed. The device operates as a bistable laser, where the two lasing modes at different wavelength are switched all-optically by injecting a clock pulse together with a set/reset signal. We employ an analytical model based on the two-mode coupled rate equations to verify the basic operation of the device numerically. Optically clocked flip-flop operation is obtained with aset/reset power of 0.60mWand clock power of 1.8mW. The device features simple structure, small footprint, and synchronized all-optical flip-flop operation, which should be attractive in the future digital photonic integrated circuits. it

    Original languageEnglish
    Pages (from-to)218-223
    Number of pages6
    JournalIEICE Transactions on Electronics
    Issue number2
    Publication statusPublished - 2012


    • All-optical flip-flop
    • Bistable laser diode
    • Cross-gain modulation
    • Photonic integrated circu
    • Saturable absorption

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Electrical and Electronic Engineering


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