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Twin mirrors for laser interferometric gravitational wave detectors

Abstract : Gravitational-wave detectors such as Virgo and the laser interferometric gravitational-wave observatory (LIGO) use a long-baseline Michelson interferometer with Fabry-Perot cavities in the arms to search for gravitational waves. The symmetry between the two Fabry-Perot cavities is crucial to reduce the interferometer's sensitivity to the laser amplitude and frequency noise. To this purpose, the transmittance of the mirrors in both cavities should be as close as possible. This paper describes the realization and the characterization of the first twin large low-loss mirrors with transmissions differing by less than 0.01%.
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http://hal.in2p3.fr/in2p3-00623969
Contributor : Dominique Girod <>
Submitted on : Thursday, September 15, 2011 - 3:08:42 PM
Last modification on : Thursday, June 17, 2021 - 3:20:10 PM

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B. Sassolas, Q. Benoit, R. Flaminio, D. Forest, J. Franc, et al.. Twin mirrors for laser interferometric gravitational wave detectors. Applied optics, Optical Society of America, 2011, 50, pp.1894-1899. ⟨10.1364/AO.50.001894⟩. ⟨in2p3-00623969⟩

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