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Optical interferometers with reduced sensitivity to thermal noise

Kimble, H. J. and Lev, Benjamin L. and Ye, Yun (2008) Optical interferometers with reduced sensitivity to thermal noise. Physical Review Letters, 101 (26). pp. 260602-260606. ISSN 0031-9007. doi:10.1103/PhysRevLett.101.260602.

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A fundamental limit to the sensitivity of optical interferometry is thermal noise that drives fluctuations in the positions of the surfaces of the interferometer's mirrors, and thereby in the phase of the intracavity field. Schemes for reducing this thermally driven phase noise are presented that rely upon the coherent character of the underlying displacements and strains. Although the position of the physical surface fluctuates, the optical phase upon reflection can have reduced sensitivity to this motion. While practical implementation of such schemes for coherent compensation face certain challenges, we hope to stimulate further work on this important thermal noise problem.

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Additional Information:© 2008 The American Physical Society. Received 20 June 2008; published 30 December 2008. We gratefully acknowledge the critical insights of K. Thorne, as well as valuable discussions with V. Braginsky, Y. Chen, J. Hall, R. Lalezari, F. Khalili, D. Nelson, and S. Vyatchanin. H. J. K.’s work was made possible by JILA. This research is supported by the NSF and NRC.
Funding AgencyGrant Number
Joint Institute for Laboratory AstrophysicsUNSPECIFIED
National Research Council of CanadaUNSPECIFIED
Subject Keywords:gravitational-wave detectors; thermodynamical fluctuations; antennae; mirrors; coatings; point; LIGO
Issue or Number:26
Classification Code:PACS numbers: 07.60.Ly, 04.80.Nn, 05.40.Ca, 42.62.Eh
Record Number:CaltechAUTHORS:20090423-190111519
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:14058
Deposited By: Joy Painter
Deposited On:08 Jul 2009 00:04
Last Modified:08 Nov 2021 22:42

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