Published January 17, 2011
| public
Journal Article
Damping parametric instabilities in future gravitational wave detectors by means of electrostatic actuators
Abstract
It has been suggested that the next generation of interferometric gravitational wave detectors may observe spontaneously excited parametric oscillatory instabilities. We present a method of actively suppressing any such instability through application of electrostatic forces to the interferometers' test masses. Using numerical methods we quantify the actuation force required to damp candidate instabilities and find that such forces are readily achievable. Our predictions are subsequently verified experimentally using prototype Advanced LIGO hardware, conclusively demonstrating the effectiveness of our approach.
Additional Information
© 2010 Elsevier B.V. Received 16 November 2010; revised 10 December 2010; accepted 10 December 2010. Communicated by V.M. Agranovich. Available online 16 December 2010. The authors would like to thank Kenneth Strain, Norna Robertson, James Hough and Rainer Weiss for their valuable input to this project. JM's work at The Massachusetts Institute of Technology was carried out under the auspices of the LIGO Visitors Program and supported by the Carnegie Trust for the Universities of Scotland. LIGO was constructed by the California Institute of Technology and the Massachusetts Institute of Technology with funding from the National Science Foundation and operates under cooperative agreement PHY-0757058. This Letter has LIGO Document Number LIGO-P1000122.Additional details
- Eprint ID
- 22793
- Resolver ID
- CaltechAUTHORS:20110310-092555568
- Universities of Scotland Carnegie Trust
- PHY-0757058
- NSF
- Created
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2011-03-10Created from EPrint's datestamp field
- Updated
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2021-11-09Created from EPrint's last_modified field
- Other Numbering System Name
- LIGO Document Number
- Other Numbering System Identifier
- LIGO-P1000122