Length Sensing and Control in the Virgo Gravitational Wave Interferometer

Author

Acernese, F. ; Amico, P. ; Al-Shourbagy, M. ; Aoudia, S. ; Avino, S. ; Babusci, D. ; Ballardin, G. ; Barille, R. ; Barone, F. ; Barsotti, Lisa ; Barsuglia, M. ; Beauville, F. ; Bizouard, M.A. ; Boccara, C. ; Bondu, F. ; Bosi, L. ; Bradaschia, C. ; Braccin

Author_Institution

INFN, Univ. di Napoli "Federico II", Naples

Volume

55

Issue

6

fYear

2006

Firstpage

1985

Lastpage

1995

Abstract

The gravitational wave detector Virgo is presently being commissioned. A significant part of the last three years was spent in setting up the cavity length control system. This paper was carried out with steps of increasing complexity: locking a simple Fabry-Perot cavity and then a Michelson interferometer (ITF) with Fabry-Perot cavities in both arms, and finally recycling the light beam into the ITF. The applied strategy and the main results obtained are described

Keywords

Fabry-Perot interferometers; Michelson interferometers; gravitational wave detectors; length measurement; physical instrumentation control; spatial variables control; Fabry-Perot cavity; Michelson interferometer; Virgo gravitational wave interferometer; feedback control system; gravitational waves; lock acquisition; Arm; Bonding; Control systems; Detectors; Feedback control; Helium; Laboratories; Observatories; Optical interferometry; Recycling; Fabry–Pérot cavity; feedback control system; gravitational waves; interferometry; lock acquisition;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/TIM.2006.884422

Filename

4014680