Control and tuning of a suspended Fabry-Perot cavity using digitally enhanced heterodyne interferometry

John Miller; Silvie Ngo; Adam J. Mullavey; Bram J.J. Slagmolen; Daniel A. Shaddock; David E. McClelland

doi:10.1364/OL.37.004952

Control and tuning of a suspended Fabry-Perot cavity using digitally enhanced heterodyne interferometry

John Miller^*, Silvie Ngo, Adam J. Mullavey, Bram J.J. Slagmolen, Daniel A. Shaddock, David E. McClelland

^*Corresponding author for this work

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

6 Citations (Scopus)

Abstract

We present the first demonstration of real-time closed-loop control and deterministic tuning of an independently suspended Fabry-Perot optical cavity using digitally enhanced heterodyne interferometry, realizing a peak sensitivity of ∼10 pm/√ Hz over the 10-1000 Hz frequency band. The methods presented are readily extensible to multiple coupled cavities. As such, we anticipate that refinements of this technique may find application in future interferometric gravitational-wave detectors.

Original language	English
Pages (from-to)	4952-4954
Number of pages	3
Journal	Optics Letters
Volume	37
Issue number	23
DOIs	https://doi.org/10.1364/OL.37.004952
Publication status	Published - 1 Dec 2012

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abstract = "We present the first demonstration of real-time closed-loop control and deterministic tuning of an independently suspended Fabry-Perot optical cavity using digitally enhanced heterodyne interferometry, realizing a peak sensitivity of ∼10 pm/√ Hz over the 10-1000 Hz frequency band. The methods presented are readily extensible to multiple coupled cavities. As such, we anticipate that refinements of this technique may find application in future interferometric gravitational-wave detectors.",

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AU - Ngo, Silvie

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AU - Shaddock, Daniel A.

AU - McClelland, David E.

PY - 2012/12/1

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AB - We present the first demonstration of real-time closed-loop control and deterministic tuning of an independently suspended Fabry-Perot optical cavity using digitally enhanced heterodyne interferometry, realizing a peak sensitivity of ∼10 pm/√ Hz over the 10-1000 Hz frequency band. The methods presented are readily extensible to multiple coupled cavities. As such, we anticipate that refinements of this technique may find application in future interferometric gravitational-wave detectors.

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Control and tuning of a suspended Fabry-Perot cavity using digitally enhanced heterodyne interferometry

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