Published June 20, 2010
| Published
Journal Article
Open
Angular instability due to radiation pressure in the LIGO gravitational-wave detector
Abstract
We observed the effect of radiation pressure on the angular sensing and control system of the Laser Interferometer Gravitational-Wave Observatory (LIGO) interferometer's core optics at LIGO Hanford Observatory. This is the first measurement of this effect in a complete gravitational-wave interferometer. Only one of the two angular modes survives with feedback control, because the other mode is suppressed when the control gain is sufficiently large. We developed a mathematical model to understand the physics of the system. This model matches well with the dynamics that we observe.
Additional Information
© 2010 Optical Society of America. Received 3 September 2009; revised 10 December 2009; accepted 10 May 2010; posted 11 May 2010 (Doc. ID 116355); published 11 June 2010. We are grateful to SamWaldman for useful discussions. This research was supported in part by the National Science Foundation (NSF) under grant PHY-0600259. LIGO was constructed by the California Institute of Technology and the Massachusetts Institute of Technology with funding from the NSF and operates under cooperative agreement PHY- 0107417. This article has LIGO document number LIGO-P0900086.Attached Files
Published - Hirose2010p10602Appl_Optics.pdf
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Hirose2010p10602Appl_Optics.pdf
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Additional details
- Eprint ID
- 18997
- Resolver ID
- CaltechAUTHORS:20100712-143400608
- PHY-0600259
- NSF
- PHY-0107417
- NSF
- Created
-
2010-08-04Created from EPrint's datestamp field
- Updated
-
2021-11-08Created from EPrint's last_modified field
- Other Numbering System Name
- LIGO document number
- Other Numbering System Identifier
- LIGO-P0900086