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

Wataru Yoshiki, Takasumi Tanabe

Research output: Contribution to journalArticlepeer-review

53 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


Dive into the research topics of 'All-optical switching using Kerr effect in a silica toroid microcavity'. Together they form a unique fingerprint.

Cite this