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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 53, Iss. 13 — May. 1, 2014
  • pp: 2906–2916

Sub-nanoradiant beam pointing monitoring and stabilization system for controlling input beam jitter in gravitational wave interferometers

B. Canuel, E. Genin, M. Mantovani, J. Marque, P. Ruggi, and M. Tacca  »View Author Affiliations

Applied Optics, Vol. 53, Issue 13, pp. 2906-2916 (2014)

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In this paper, a simple and effective control system to monitor and suppress the beam jitter noise at the input of an optical system, called a beam pointing control (BPC) system, will be described, showing the theoretical principle and an experimental demonstration for the application of large-scale gravitational wave (GW) interferometers (ITFs), in particular for the Advanced Virgo detector. For this purpose, the requirements for the control accuracy and the sensing noise will be computed by taking into account the Advanced Virgo optical configuration, and the outcomes will be compared with the experimental measurement obtained in the laboratory. The system has shown unprecedented performance in terms of control accuracy and sensing noise. The BPC system has achieved a control accuracy of 108rad for the tilt and 107m for the shift and a sensing noise of less than 1 nrad/Hz, which is compliant with the Advanced Virgo GW ITF requirements.

© 2014 Optical Society of America

OCIS Codes
(120.4820) Instrumentation, measurement, and metrology : Optical systems
(140.3425) Lasers and laser optics : Laser stabilization

ToC Category:
Instrumentation, Measurement, and Metrology

Original Manuscript: January 10, 2014
Revised Manuscript: March 21, 2014
Manuscript Accepted: March 27, 2014
Published: April 30, 2014

B. Canuel, E. Genin, M. Mantovani, J. Marque, P. Ruggi, and M. Tacca, "Sub-nanoradiant beam pointing monitoring and stabilization system for controlling input beam jitter in gravitational wave interferometers," Appl. Opt. 53, 2906-2916 (2014)

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