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

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Date

2012-12-01

Authors

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

Journal Title

Journal ISSN

Volume Title

Publisher

Optical Society of America

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.

Description

Keywords

Keywords: Closed-loop control; Coupled cavity; Fabry-Perot cavity; Fabry-Perot optical cavity; Gravitational wave detectors; Heterodyne interferometry; Frequency bands; Heterodyning

Citation

URI

http://hdl.handle.net/1885/101147

Collections

ANU Research Publications

Source

Optics letters

Type

Journal article

Book Title

Entity type

Access Statement

License Rights

DOI

10.1364/OL.37.004952

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