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Published September 29, 2004 | Published
Book Section - Chapter Open

Status of ACIGA High Power Test Facility for advanced interferometry


The Australian Consortium for Gravitational Astronomy has built a High Optical Power Test Facility north of Perth, Western Australia. Current experiments in collaboration with LIGO are testing thermal lensing compensation, and suspension control on an 80m baseline suspended optical cavity. Future experiments will test radiation pressure instabilities and optical spring in a high power optical cavity with ~200kW circulating power. Once issues of operation and control have been resolved, the facility will go on to assess the noise performance of the high optical power technology through operation of an advanced interferometer with sapphire tests masses, and high performance suspension and isolation systems. The facility combines research and development undertaken by all consortium members, which latest results are presented.

Additional Information

© 2004 Society of Photo-optical Instrumentation Engineers (SPIE). This work is supported by the Australian Research Council, the Department of Education, Science and Training (DEST), and by LIGO laboratories. The authors wish to thanks the LIGO ACIGA Advisory Committee: Jordan Camp, Bill Kells, David J. Ottaway, David Reitze, Benno Willke and Mike Zucker. Also acknowledged is David Shoemaker for his support of this committee. Mark Barton was supported by the U.S. National Science Foundation under grant number PHY0245117. The authors also wish to thank the Gravity Waves technical staff at UWA: Ken Field, Peter Hay, Vinnie Nguyen, Xiaomei Niu, Steve Pople, Tim Slade and Daniel Stone.

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