The low frequency facility Fabry-Perot cavity used as a speed-meter

Year: 2003

Authors: Di Virgilio A., Braccini S., Ballardin G., Bradaschia C., Cella G., Cuoco E., Dattilo V., Fazzi M., Ferrante I., Fidecaro F., Frasconi F., Giazotto A., Gennai A., Holloway LH., La Penna P., Lomtadze T., Losurdo G., Passaquieti R., Passuello D., Poggiani R., Porzio A., Puppo P., Raffaelli F., Rapagnani P., Ricci F., Ricciardi I., Solimeno S., Stanga R., Vetrano F., Zhou Z.

Autors Affiliation: Istituto Nazionale di Fisica Nucleare, Sez. Pisa, Italy; EGO, European Gravitational Observatory, Cascina (PI), Italy; Università di Pisa, Pisa, Italy; INFN Sezione di Firenze, Sesto Fiorentino, Italy; Istituto Nazionale di Fisica Nucleare, Sez. Napoli, Dipartimento di Scienze Fisiche, Università di Napoli “Federico II”, Naples, Italy; Università di Roma, Roma 1, Roma, Italy; Università di Firenze, Firenze, Italy; Università di Urbino, Urbino, Italy

Abstract: Fabry-Perot cavities have many different applications as scientific instruments. In the gravitational waves research field they are extensively used to frequency stabilize lasers and to measure very small distance variations. In the present Letter a method to evaluate from the transmitted power only the relative speed and position of the mirrors of a cavity, having finesse F > 40, is described. A displacement spectral sensitivity of the order of about 3 x 10(-10) m/Hz(-1/2) at 10 Hz is obtained with the cavity of the low frequency facility. (C) 2003 Elsevier B.V. All rights reserved.

Journal/Review: PHYSICS LETTERS A

Volume: 316 (1-2)      Pages from: 1  to: 9

KeyWords: Fabry–Perot cavities; speed-meter;
DOI: 10.1016/S0375-9601(03)00979-4

Citations: 6
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