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Applied Optics

Applied Optics


  • Vol. 44, Iss. 16 — Jun. 1, 2005
  • pp: 3179–3191

Development of a frequency-detuned interferometer as a prototype experiment for next-generation gravitational-wave detectors

Kentaro Somiya, Peter Beyersdorf, Koji Arai, Shuichi Sato, Seiji Kawamura, Osamu Miyakawa, Fumiko Kawazoe, Shihori Sakata, Aya Sekido, and Norikatsu Mio  »View Author Affiliations

Applied Optics, Vol. 44, Issue 16, pp. 3179-3191 (2005)

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We report on our prototype experiment that uses a 4-m detuned resonant sideband extraction interferometer with suspended mirrors, which has almost the same configuration as the next-generation, gravitational-wave detectors. We have developed a new control scheme and have succeeded in the operation of such an interferometer with suspended mirrors for the first time ever as far as we know. We believe that this is the first such instrument that can see the radiation pressure signal enhancement, which can improve the sensitivity of next-generation gravitational-wave detectors.

© 2005 Optical Society of America

OCIS Codes
(120.2230) Instrumentation, measurement, and metrology : Fabry-Perot
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(120.5050) Instrumentation, measurement, and metrology : Phase measurement
(350.1270) Other areas of optics : Astronomy and astrophysics

Original Manuscript: July 14, 2004
Revised Manuscript: December 6, 2004
Manuscript Accepted: December 19, 2004
Published: June 1, 2005

Kentaro Somiya, Peter Beyersdorf, Koji Arai, Shuichi Sato, Seiji Kawamura, Osamu Miyakawa, Fumiko Kawazoe, Shihori Sakata, Aya Sekido, and Norikatsu Mio, "Development of a frequency-detuned interferometer as a prototype experiment for next-generation gravitational-wave detectors," Appl. Opt. 44, 3179-3191 (2005)

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  19. Both the signal sidebands and the rf sidebands of a detuned RSE interferometer are not the pure phase-modulated sidebands but the unbalanced sidebands so that the readout phase, which is π/2 for a broadband interferometer, can be chosen between 0 and π. Here we assume the readout phase of π/2 as the standard detection. Further explanation is available inChap. 5 and Appendix C of Ref. 8.

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