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Type: Journal article
Title: Observation of optical torsional stiffness in a high optical power cavity
Author: Fan, Y.
Merrill, L.
Zhao, C.
Ju, L.
Blair, D.
Slagmolen, B.
Hosken, D.
Brooks, A.
Veitch, P.
Mudge, D.
Munch, J.
Citation: Applied Physics Letters, 2009; 94(8):1-5
Publisher: Amer Inst Physics
Issue Date: 2009
ISSN: 0003-6951
Statement of
Yaohui Fan, Lucienne Merrill, Chunnong Zhao, Li Ju, David Blair, Bram Slagmolen, David Hosken, Aidan Brooks, Peter Veitch, Damien Mudge, and Jesper Munch.
Abstract: <jats:p>We have observed negative optical torsional rigidity in an 80 m suspended high optical power cavity that would induce the Sidles–Sigg instability as a result of sufficient circulating power. The magnitude of the negative optical spring constant per unit power is a few μN m/W as the result of the optical torsional stiffness in the yaw mode of a suspended mirror Fabry–Pérot cavity. It has been observed to depend on the g-factor of the cavity which is in agreement with the Sidles–Sigg theory.</jats:p>
Keywords: Fabry-Perot resonators
gravitational wave detectors
laser cavity resonators
laser mirrors
laser stability
light interferometry
measurement by laser beam
Rights: © 2009 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.
DOI: 10.1063/1.3088850
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