Arm-length stabilisation for interferometric gravitational-wave detectors using frequency-doubled auxiliary lasers
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Mullavey, Adam J.; Slagmolen, Bram J. J.; Miller, John; Evans, Matthew; Fritschel, Peter; Sigg, Daniel; Waldman, Sam J.; Shaddock, Daniel A.; McClelland, David E.
Description
Residual motion of the arm cavity mirrors is expected to prove one of the principal impediments to systematic lock acquisition in advanced gravitational-wave interferometers. We present a technique which overcomes this problem by employing auxiliary lasers at twice the fundamental measurement frequency to pre-stabilise the arm cavities' lengths. Applying this approach, we reduce the apparent length noise of a 1.3 m long, independently suspended Fabry-Perot cavity to 30 pm rms and...[Show more]
Collections | ANU Research Publications |
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Date published: | 2011-12-14 |
Type: | Journal article |
URI: | http://hdl.handle.net/1885/101231 |
Source: | Optics Express |
DOI: | 10.1364/OE.20.000081 |
Access Rights: | Open Access |
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