Control and tuning of a suspended Fabry-Perot cavity using digitally enhanced heterodyne interferometry
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Miller, John; Ngo, Silvie; Mullavey, Adam J; Slagmolen, Bram J J; Shaddock, Daniel A; McClelland, David E
Description
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.
Collections | ANU Research Publications |
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Date published: | 2012-12-01 |
Type: | Journal article |
URI: | http://hdl.handle.net/1885/101147 |
Source: | Optics letters |
DOI: | 10.1364/OL.37.004952 |
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