Implementation of tapered multimode interference lightwave combiner on silicon-on-insulator substrate with negligible back-reflection

Zhigang Wu, Kazuhiko Nakamura, Soichiro Honda, Katsuyuki Utaka, Tomohiko Edura, Ken Tsutsui, Yasuo Wada

    Research output: Contribution to journalArticle

    4 Citations (Scopus)

    Abstract

    We fabrieated and experimentally evaluated 2 × 1 tapered multimode interference (MMI) combiners on silicon-on-insulator (SOI) substrates. The tapered MMI combiner we previously proposed is expected to be free from the reflection problem usually existed in a conventional rectangular MMI coupler, and such a negligible back-reflection property was actually verified. As one of its applications, we implemented a Mach-Zehnder (MZ) modulator using the tapered MMI combiner, which is often equipped with semiconductor optical amplifiers (SOAs) for ultrahigh-speed photonic switching devices and those SOAs are quite sensitive to the back-reflection.

    Original languageEnglish
    JournalJapanese Journal of Applied Physics, Part 2: Letters
    Volume44
    Issue number28-32
    DOIs
    Publication statusPublished - 2005

    Fingerprint

    Semiconductor optical amplifiers
    insulators
    interference
    Silicon
    silicon
    Substrates
    light amplifiers
    Photonics
    Modulators
    Mach number
    optical switching
    couplers
    modulators

    Keywords

    • Integrated optics
    • Lightwave combiner
    • MMI
    • MZ modulator
    • Si waveguide

    ASJC Scopus subject areas

    • Physics and Astronomy (miscellaneous)

    Cite this

    Implementation of tapered multimode interference lightwave combiner on silicon-on-insulator substrate with negligible back-reflection. / Wu, Zhigang; Nakamura, Kazuhiko; Honda, Soichiro; Utaka, Katsuyuki; Edura, Tomohiko; Tsutsui, Ken; Wada, Yasuo.

    In: Japanese Journal of Applied Physics, Part 2: Letters, Vol. 44, No. 28-32, 2005.

    Research output: Contribution to journalArticle

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    AU - Utaka, Katsuyuki

    AU - Edura, Tomohiko

    AU - Tsutsui, Ken

    AU - Wada, Yasuo

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