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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 37, Iss. 34 — Dec. 1, 1998
  • pp: 7995–8001

Experimental demonstration of resonant sideband extraction in a Sagnac interferometer

Daniel A. Shaddock, Malcolm B. Gray, and David E. McClelland  »View Author Affiliations


Applied Optics, Vol. 37, Issue 34, pp. 7995-8001 (1998)
http://dx.doi.org/10.1364/AO.37.007995


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Abstract

Sagnac interferometers have recently been proposed as a potential alternative to Michelson interferometers for the purpose of large-scale laser interferometric gravitational-wave detectors. We report on an experimental investigation of the Sagnac interferometer in two configurations: with arm cavities, and with resonant sideband extraction. Resonant sideband extraction was shown to increase the signal bandwidth by a factor of 6.5 compared with the arm cavity device, corresponding to an increase in sensitivity of as much as 6 dB for signals outside the arm cavity bandwidth. Moreover, we compare the performance of a Sagnac interferometer with resonant sideband extraction to a Michelson interferometer with resonant sideband extraction.

© 1998 Optical Society of America

OCIS Codes
(000.2780) General : Gravity
(120.3180) Instrumentation, measurement, and metrology : Interferometry

History
Original Manuscript: June 29, 1998
Published: December 1, 1998

Citation
Daniel A. Shaddock, Malcolm B. Gray, and David E. McClelland, "Experimental demonstration of resonant sideband extraction in a Sagnac interferometer," Appl. Opt. 37, 7995-8001 (1998)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-37-34-7995


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