Control of coupling ratio by proton implantation for a directional coupler of planar-lightwave-circuit type

Seung Jun Yu, Masahiro Suzuki, Yoshimichi Ohki, Makoto Fujimaki, Koichi Awazu

    Research output: Contribution to journalArticle

    4 Citations (Scopus)

    Abstract

    By implanting protons into a cladding in the coupling region of a directional coupler of the planar-lightwave-circuit type at an acceleration energy that enables the protons to reach the center of the core, the coupling ratio of the coupler is changed periodically and continuously by increasing proton fluence. In the case of two optical waveguides formed in a planar lightwave circuit with a mutual spacing too large for optical coupling, proton implantation into the cladding between the waveguides induces optical coupling between them. These results indicate that the coupling ratio of a directional coupler can be controlled by ion implantation.

    Original languageEnglish
    Pages (from-to)1024051-1024055
    Number of pages5
    JournalJapanese Journal of Applied Physics
    Volume48
    Issue number10 Part 1
    DOIs
    Publication statusPublished - 2009

    Fingerprint

    Directional couplers
    directional couplers
    Ion implantation
    implantation
    Protons
    optical coupling
    protons
    Networks (circuits)
    Optical waveguides
    optical waveguides
    couplers
    ion implantation
    fluence
    spacing
    waveguides
    energy

    ASJC Scopus subject areas

    • Engineering(all)
    • Physics and Astronomy(all)

    Cite this

    Control of coupling ratio by proton implantation for a directional coupler of planar-lightwave-circuit type. / Yu, Seung Jun; Suzuki, Masahiro; Ohki, Yoshimichi; Fujimaki, Makoto; Awazu, Koichi.

    In: Japanese Journal of Applied Physics, Vol. 48, No. 10 Part 1, 2009, p. 1024051-1024055.

    Research output: Contribution to journalArticle

    Yu, Seung Jun ; Suzuki, Masahiro ; Ohki, Yoshimichi ; Fujimaki, Makoto ; Awazu, Koichi. / Control of coupling ratio by proton implantation for a directional coupler of planar-lightwave-circuit type. In: Japanese Journal of Applied Physics. 2009 ; Vol. 48, No. 10 Part 1. pp. 1024051-1024055.
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