Performances of the Virgo interferometer longitudinal control system

F. Acernese*, F. Antonucci, S. Aoudia, K.G. Arun, P. Astone, G. Ballardin, F. Barone, M. Barsuglia, T.S. Bauer, M.G. Beker, S. Bigotta, S. Birindelli, M.A. Bizouard, M. Blom, C. Boccara, F. Bondu, L. Bonelli, L. Bosi, S. Braccini, C. BradaschiaA. Brillet, V. Brisson, R. Budzynski, T. Bulik, H.J. Bulten, D. Buskulic, G. Cagnoli, E. Calloni, E. Campagna, B. Canuel, F. Carbognani, F. Cavalier, R. Cavalieri, G. Cella, E. Cesarini, E. Chassande-Mottin, A. Chincarini, F. Cleva, E. Coccia, C.N. Colacino, J. Colas, A. Colla, M. Colombini, C. Corda, A. Corsi, J.P. Coulon, E. Cuoco, S. D'Antonio, A. Dari, V. Dattilo, S. Hild

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review


The performances of the longitudinal sensing and control system of the Virgo gravitational wave detector are described. This system is able to stably maintain the RMS residual fluctuation of the interferometer longitudinal degrees of freedom around or below 10(-11) m, compatible with the original Virgo requirements. Moreover the detector sensitivity is not limited by longitudinal control noise at any frequency. Indeed the noise re-introduced by the longitudinal control system does not affect the Virgo design sensitivity. (C) 2009 Elsevier B.V. All rights reserved.
Original languageEnglish
Pages (from-to)75-80
Number of pages6
JournalAstroparticle Physics
Issue number2
Publication statusPublished - 1 Mar 2010
Externally publishedYes


  • Gravitational waves
  • Interferometry
  • Virgo


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