Mode latching and self tuning of whispering gallery modes in a stand-alone silica microsphere

Monica Agarwal, Iwao Teraoka

Research output: Contribution to journalArticle

Abstract

Performance of whispering gallery mode resonators can be compromised by resonance wavelength fluctuations. Here, we employ a silica microsphere coupled with a pair of head-on, single-ended tapers to show that the resonator by itself can latch onto a specific mode when the wavelength of a high-power laser changes over many resonance peak widths in both directions. We also show that, at high power of pump-in laser, the resonator can self-tune its resonance to a fixed wavelength when the resonator temperature changes or the gas flow surrounding the resonator changes, but the resonance is easily lost when the power is low.

Original languageEnglish (US)
Article number251105
JournalApplied Physics Letters
Volume101
Issue number25
DOIs
StatePublished - Dec 17 2012

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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