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Proceedings Paper

Laser interferometric adaptive optics system for a three-meter suspended Michelson interferometer for low-frequency seismic noise measurement
Author(s): Fausto Acernese; Saverio Avino; Enrico Calloni; Fabrizio Barone; Rosario De Rosa; Antonio Eleuteri; Leopoldo Milano; Ketevan Qipiani; Silvio Pardi; Iolanda Ricciardi
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Paper Abstract

We present a study and preliminary experimental results on the possibility of using an adaptive optics system for reduction of geometrical fluctuations of input laser beam in long baseline interferometric detectors of gravitational waves. Presently used completely passive systems are expected to reduce fluctuations only at a level that, due to coupling of geometrical fluctuations with interferometer asymmetries, impose requirements on interferometer operation which are at the limit of present technology. Active pre-stabilization could reduce fluctuations and relax these requirements, allowing a safer and more robust interferometer operation on the planned time-scale of years of continuous data acquisition. The system and the methodologies we have developed are going to be adapted to the Mode Cleaner of the IDGW-3P, a prototype of three-meter suspended Michelson Interferometer expressely developed for Seismic Noise measurement, now becoming operational in Napoli.

Paper Details

Date Published: 11 November 2004
PDF: 6 pages
Proc. SPIE 5572, Optics in Atmospheric Propagation and Adaptive Systems VII, (11 November 2004); doi: 10.1117/12.565369
Show Author Affiliations
Fausto Acernese, Univ. degli studi di Napoli Federico II (Italy)
Istituto Nazionale de Fisica Nucleare (Italy)
Saverio Avino, Univ. degli studi di Napoli Federico II (Italy)
Istituto Nazionale de Fisica Nucleare (Italy)
Enrico Calloni, Univ. degli studi di Napoli Federico II (Italy)
Istituto Nazionale de Fisica Nucleare (Italy)
Fabrizio Barone, Istituto Nazionale de Fisica Nucleare (Italy)
Univ. degli Studi di Salerno (Italy)
Rosario De Rosa, Univ. degli Studi di Napoli Federico II (Italy)
Istituto Nazionale de Fisica Nucleare (Italy)
Antonio Eleuteri, Univ. degli Studi di Napoli Federico II (Italy)
Istituto Nazionale de Fisica Nucleare (Italy)
Leopoldo Milano, Univ. degli Studi di Napoli Federico II (Italy)
Istituto Nazionale de Fisica Nucleare (Italy)
Ketevan Qipiani, Istituto Nazionale de Fisica Nucleare (Italy)
Silvio Pardi, Univ. degli Studi di Napoli Federico II (Italy)
Iolanda Ricciardi, Univ. degli Studi di Napoli Federico II (Italy)
Istituto Nazionale de Fisica Nucleare (Italy)


Published in SPIE Proceedings Vol. 5572:
Optics in Atmospheric Propagation and Adaptive Systems VII
John D. Gonglewski; Karin Stein, Editor(s)

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