Critical coupling control of a microresonator by laser amplitude modulation

Chow, Jong H., Taylor, Michael A., Lam, Timothy T-Y., Knittel, Joachim, Sawtell-Rickson, Jye D., Shaddock, Daniel A., Gray, Malcolm B., McClelland, David E. and Bowen, Warwick P. (2012) Critical coupling control of a microresonator by laser amplitude modulation. Optics Express, 20 11: 12622-12630. doi:10.1364/OE.20.012622


Author Chow, Jong H.
Taylor, Michael A.
Lam, Timothy T-Y.
Knittel, Joachim
Sawtell-Rickson, Jye D.
Shaddock, Daniel A.
Gray, Malcolm B.
McClelland, David E.
Bowen, Warwick P.
Title Critical coupling control of a microresonator by laser amplitude modulation
Journal name Optics Express   Check publisher's open access policy
ISSN 1094-4087
Publication date 2012-05
Sub-type Article (original research)
DOI 10.1364/OE.20.012622
Open Access Status DOI
Volume 20
Issue 11
Start page 12622
End page 12630
Total pages 9
Place of publication Washington, DC, United States
Publisher Optical Society of America
Collection year 2013
Language eng
Abstract We present a laser amplitude modulation technique to actively stabilize the critical coupling of a microresonator by controlling the evanescent coupling gap from an optical fiber taper. It is a form of nulled lock-in detection, which decouples laser intensity fluctuations from the critical coupling measurement. We achieved a stabilization bandwidth of ∼20 Hz, with up to 5 orders of magnitude displacement noise suppression at 10 mHz, and an inferred gap stability of better than a picometer/a/Hz.
Keyword Frequency Stabilization
Optical Microcavities
Ring-Resonator
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mathematics and Physics
Official 2013 Collection
 
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Created: Mon, 25 Jun 2012, 09:37:40 EST by System User on behalf of Physics