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Proceedings Paper

Parametric instability in GEO 600 interferometer
Author(s): A. G. Gurkovsky; S. P. Vyatchanin
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Paper Abstract

We present the analysis of undesirable effect of parametric instability in the signal recycled GEO 600 interferometer. This effect leads to the excitation of the additional (Stokes) optical mode, having frequency &ohgr;1, and the mirror elastic mode, having frequency &ohgr;m. This happens when the optical energy stored in the main interferometer mode, having frequency &ohgr;0, exceeds a certain threshold and the detuning &Dgr; = &ohgr;0 - &ohgr;1 - &ohgr;m is small. We discuss the potential of observing the effect of parametric instability and its precursors in GEO 600 interferometer. This approach provides the best option to get familiar with this phenomenon, to develop experimental methods to depress it and to test the effectiveness of these methods in situ.

Paper Details

Date Published: 9 July 2007
PDF: 6 pages
Proc. SPIE 6727, ICONO 2007: Nonlinear Laser Spectroscopy and High-Precision Measurements; and Fundamentals of Laser Chemistry and Biophotonics, 672712 (9 July 2007); doi: 10.1117/12.752324
Show Author Affiliations
A. G. Gurkovsky, Moscow State Univ. (Russia)
S. P. Vyatchanin, Moscow State Univ. (Russia)


Published in SPIE Proceedings Vol. 6727:
ICONO 2007: Nonlinear Laser Spectroscopy and High-Precision Measurements; and Fundamentals of Laser Chemistry and Biophotonics

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