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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Bibliographic Details
Published in:Quantum electronics (Woodbury, N.Y.) N.Y.), 2007-12, Vol.37 (12), p.1097-1101
Main Authors: Vyatchanin, S P, Strigin, S E
Format: Article
Language:English
Subjects:
ANTENNAS
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
EIGENFREQUENCY
ELECTRICAL EQUIPMENT
ELECTRONIC EQUIPMENT
ENERGY-LEVEL TRANSITIONS
EXCITATION
FABRY-PEROT INTERFEROMETER
GRAVITATIONAL WAVES
INSTABILITY
INTERFEROMETERS
LASERS
MEASURING INSTRUMENTS
MIRRORS
OPTICAL MODES
OSCILLATION MODES
PARAMETRIC INSTABILITIES
PLASMA INSTABILITY
PLASMA MACROINSTABILITIES
RESONATORS
SIGNALS
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Summary: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