A Caltech Library Service

Angular instability due to radiation pressure in the LIGO gravitational-wave detector

Hirose, Eiichi and Kawabe, Keita and Sigg, Daniel and Adhikari, Rana X. and Saulson, Peter R. (2010) Angular instability due to radiation pressure in the LIGO gravitational-wave detector. Applied Optics, 49 (18). pp. 3474-3484. ISSN 0003-6935.

PDF - Published Version
See Usage Policy.


Use this Persistent URL to link to this item:


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.

Item Type:Article
Related URLs:
URLURL TypeDescription
Adhikari, Rana X.0000-0002-5731-5076
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.
Funding AgencyGrant Number
Other Numbering System:
Other Numbering System NameOther Numbering System ID
LIGO document number LIGO-P0900086
Issue or Number:18
Classification Code:OCIS codes: 000.2780, 120.3180, 120.2230, 220.1140
Record Number:CaltechAUTHORS:20100712-143400608
Persistent URL:
Official Citation:Eiichi Hirose, Keita Kawabe, Daniel Sigg, Rana Adhikari, and Peter R. Saulson, "Angular instability due to radiation pressure in the LIGO gravitational-wave detector," Appl. Opt. 49, 3474-3484 (2010)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:18997
Deposited By: Tony Diaz
Deposited On:04 Aug 2010 17:31
Last Modified:03 Oct 2019 01:50

Repository Staff Only: item control page