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IOP Publishing, Journal of Optics A: Pure and Applied Optics, 6(10), p. 064009, 2008

DOI: 10.1088/1464-4258/10/6/064009

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The Virgo 3 km interferometer for gravitational wave detection

Journal article published in 2008 by F. Acernese, P. Amico, M. Alshourbagy, F. Antonucci, S. Aoudia, P. Astone, S. Avino ORCID, L. Baggio, G. Ballardin, F. Barone, L. Barsotti, M. Barsuglia, Th S. Bauer, T.-H. S. Bauer, S. Bigotta and other authors.
This paper is available in a repository.
This paper is available in a repository.

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Data provided by SHERPA/RoMEO

Abstract

Virgo, designed, constructed and developed by the French-Italian VIRGO collaboration located in Cascina (Pisa, Italy) and aiming to detect gravitational waves, is a ground-based power recycled Michelson interferometer, with 3 km long suspended Fabry -Perot cavities. The first Virgo scientific data-taking started in mid-May 2007, in coincidence with the corresponding LIGO detectors. The optical scheme of the interferometer and the various optical techniques used in the experiment, such as the laser source, control, alignment, stabilization and detection strategies are outlined. The future upgrades that are planned for Virgo from the optical point of view, especially concerning the evolution of the Virgo laser, are presented. Finally, the next generation of the gravitational wave detector (advanced Virgo) is introduced from the point of view of the laser system.