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Published March 1, 2003 | Published
Journal Article Open

Sensing and control in dual-recycling laser interferometer gravitational-wave detectors


We introduce length-sensing and control schemes for the dual-recycled cavity-enhanced Michelson interferometer configuration proposed for the Advanced Laser Interferometer Gravitational Wave Observatory (LIGO). We discuss the principles of this scheme and show methods that allow sensing and control signals to be derived. Experimental verification was carried out in three benchtop experiments that are introduced. We present the implications of the results from these experiments for Advanced LIGO and other future interferometric gravitational-wave detectors.

Additional Information

© 2003 Optical Society of America. Received 5 July 2002; revised manuscript received 14 November 2002. The authors acknowledge support of colleagues within the LSC and financial support for this research from the Particle Physics and Astronomy Research Council and the University of Glasgow in the UK, from the National Science Foundation PHY-0070854, PHY-9986274, PHY-9801158, PHY-9700601, and PHY-9210038, and from the Australian Research Council.

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