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Low phase noise squeezed vacuum for future generation gravitational wave detectors

Kijbunchoo, Nutsinee; McRae, Terry; Sigg, D; Dwyer, S; Barsotti, L; Blair, C. D.; Effler, A.; Evans, M; Fernandez-Galiana, A.; Frolov, V; Matichard, F; Mavalvala, Nergis; Mullavey, Adam; Slagmolen, Bram; Tse, M; Whittle, C; McClelland, David


Squeezed light has become a standard technique to enhance the sensitivity of gravitational wave detectors. Both optical losses and phase noise in the squeezed path can degrade the achievable improvements. Phase noise can be mitigated by having a high bandwidth servo to stabilize the squeezer phase to the light from the interferometer. In advanced LIGO, this control loop bandwidth is limited by the 4 km arm cavity free spectral range to about ~15 kHz. Future generation gravitational-wave...[Show more]

CollectionsANU Research Publications
Date published: 2020
Type: Journal article
Source: Classical and Quantum Gravity
DOI: 10.1088/1361-6382/aba4bb


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