Parametric oscillatory instability in a signal-recycled LIGO interferometer

The undesirable effect of parametric oscillatory instability in a LIGO (Laser Interferometer Gravitational-Wave Observatory) laser gravitational-wave antenna with a signal-recirculation mirror is analysed in detail. The instability is manifested in excitation of the Stokes optical mode and elastic m...

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Veröffentlicht in:Quantum electronics (Woodbury, N.Y.) N.Y.), 2007-12, Vol.37 (12), p.1097-1101
Hauptverfasser: Vyatchanin, S P, Strigin, S E
Format: Artikel
Sprache:eng
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Zusammenfassung:The undesirable effect of parametric oscillatory instability in a LIGO (Laser Interferometer Gravitational-Wave Observatory) laser gravitational-wave antenna with a signal-recirculation mirror is analysed in detail. The instability is manifested in excitation of the Stokes optical mode and elastic mechanical mode of the mirror. It is shown that, if the eigenfrequencies of Fabry-Perot resonators in the interferometer arms are different, the parametric instability is quite small due to a small passband band width. (fifth seminar in memory of d.n. klyshko)
ISSN:1063-7818
1468-4799
DOI:10.1070/QE2007v037n12ABEH013675