Plane parallel mirrors Fabry-Perot cavity to improve Virgo superattenuators

The measurement of the finesse and the longitudinal locking of a 100 μm long plane mirrors Fabry-Perot cavity is described. a finesse of up to 5400 has been found. If attached to the Virgo antenna suspension (SA), a similar device is sensitive enough to detect the thermal displacement noise of the S...

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Bibliographic Details
Published in:Physics letters. A 1998-06, Vol.243 (4), p.187-194
Main Authors: Bernardini, M., Braccini, S., Bradaschia, C., Cella, G., Cuoco, E., D'Ambrosio, E., Dattilo, V., De Salvo, R., di Virgilio, A., Fidecaro, F., Gaddi, A., Gennai, A., Giassi, A., Giazotto, A., La Penna, P., Lyablin, M., Losurdo, G., Maggiore, M., Mancini, S., Pan, H.B., Pasqualetti, A., Passuello, D., Poggiani, R., Popolizio, P., Shabalin, D., Viceré, A., Zhang, Z.
Format: Article
Language:English
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Summary:The measurement of the finesse and the longitudinal locking of a 100 μm long plane mirrors Fabry-Perot cavity is described. a finesse of up to 5400 has been found. If attached to the Virgo antenna suspension (SA), a similar device is sensitive enough to detect the thermal displacement noise of the SA test mass, which is expected to limit the Virgo antenna sensitivity between 10 and 600 Hz. Reducing the Virgo noise floor is a challenge for future antenna development, as this region is the most promising one for coalescing binary stars and pulsar signals.
ISSN:0375-9601
1873-2429
DOI:10.1016/S0375-9601(98)00191-1