Critical coupling control of a microresonator by laser amplitude modulation

Jong H. Chow; Michael A. Taylor; Timothy T.Y. Lam; Joachim Knittel; Jye D. Sawtell-Rickson; Daniel A. Shaddock; Malcolm B. Gray; David E. McClelland; Warwick P. Bowen

doi:10.1364/OE.20.012622

Critical coupling control of a microresonator by laser amplitude modulation

Jong H. Chow^*, Michael A. Taylor, Timothy T.Y. Lam, Joachim Knittel, Jye D. Sawtell-Rickson, Daniel A. Shaddock, Malcolm B. Gray, David E. McClelland, Warwick P. Bowen

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

23 Citations (Scopus)

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.

Original language	English
Pages (from-to)	12622-12630
Number of pages	9
Journal	Optics Express
Volume	20
Issue number	11
DOIs	https://doi.org/10.1364/OE.20.012622
Publication status	Published - 21 May 2012

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title = "Critical coupling control of a microresonator by laser amplitude modulation",

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.",

author = "Chow, {Jong H.} and Taylor, {Michael A.} and Lam, {Timothy T.Y.} and Joachim Knittel and Sawtell-Rickson, {Jye D.} and Shaddock, {Daniel A.} and Gray, {Malcolm B.} and McClelland, {David E.} and Bowen, {Warwick P.}",

year = "2012",

month = may,

day = "21",

doi = "10.1364/OE.20.012622",

language = "English",

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pages = "12622--12630",

journal = "Optics Express",

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T1 - Critical coupling control of a microresonator by laser amplitude modulation

AU - Chow, Jong H.

AU - Taylor, Michael A.

AU - Lam, Timothy T.Y.

AU - Knittel, Joachim

AU - Sawtell-Rickson, Jye D.

AU - Shaddock, Daniel A.

AU - Gray, Malcolm B.

AU - McClelland, David E.

AU - Bowen, Warwick P.

PY - 2012/5/21

Y1 - 2012/5/21

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=84861494435&partnerID=8YFLogxK

U2 - 10.1364/OE.20.012622

DO - 10.1364/OE.20.012622

M3 - Article

SN - 1094-4087

VL - 20

SP - 12622

EP - 12630

JO - Optics Express

JF - Optics Express

IS - 11

ER -

Critical coupling control of a microresonator by laser amplitude modulation

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