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Journal Article

Impact of backscattered light in a squeezing-enhanced interferometric gravitational-wave detector

MPS-Authors
http://pubman.mpdl.mpg.de/cone/persons/resource/persons40463

Khalaidovski,  A.
Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

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1307.8176.pdf
(Preprint), 319KB

cqg_31_3_035017.pdf
(Any fulltext), 397KB

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Citation

Chua, S. S. Y., Dwyer, S., Barsotti, L., Sigg, D., Schofield, R. M. S., Frolov, V. V., et al. (2014). Impact of backscattered light in a squeezing-enhanced interferometric gravitational-wave detector. Classical and quantum gravity, 31: 035017. doi:10.1088/0264-9381/31/3/035017.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0024-9B56-0
Abstract
Squeezed states of light have been recently used to improve the sensitivity of laser interferometric gravitational-wave detectors beyond the quantum limit. To completely establish quantum engineering as a realistic option for the next generation of detectors, it is crucial to study and quantify the noise coupling mechanisms which injection of squeezed states could potentially introduce. We present a direct measurement of the impact of backscattered light from a squeezed-light source deployed on one of the 4 km long detectors of the Laser Interferometric Gravitational Wave Observatory (LIGO). We also show how our measurements inform the design of squeezed light sources compatible with the even more sensitive advanced detectors currently under construction, such as Advanced LIGO.