All-optical switching using Kerr effect in a silica toroid microcavity

Wataru Yoshiki, Takasumi Tanabe

    Research output: Contribution to journalArticle

    34 Citations (Scopus)


    We demonstrate experimentally an all-optical switching operation using the Kerr effect in a silica toroid microcavity. Thanks to the small mode volume and high quality factor of the silica toroid microcavity, we achieved on-chip optical Kerr switching with an input power of 2 mW. This value is the smallest among all previously reported on-chip optical Kerr switches. We also show that this value can be reduced to a few tens of μW by employing a mode with a Q factor of > 2 × 107.

    Original languageEnglish
    Pages (from-to)24332-24341
    Number of pages10
    JournalOptics Express
    Issue number20
    Publication statusPublished - 2014 Oct 6

    ASJC Scopus subject areas

    • Atomic and Molecular Physics, and Optics

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