Precursors of parametric oscillatory instability in LIGO interferometer - INSPIRE

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Precursors of parametric oscillatory instability in LIGO interferometer

I.A. Polyakov
(
- Moscow State U.
)
,
S.P. Vyatchanin
(
- Moscow State U.
)

2007

8 pages

Published in:

Phys.Lett.A 368 (2007) 423-430

DOI:

10.1016/j.physleta.2007.04.052

reference search7 citations

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Abstract: (Elsevier)

The basis of undesirable effect of parametric oscillatory instability in optical interferometer is provided by excitation of the additional (Stokes) optical mode having frequency ω 1 , and the mirror elastic mode, having frequency ω m . It appears when optical energy stored in the main mode, with frequency ω 0 , exceeds a certain threshold and the frequencies are related as ω 0 ≃ ω 1 + ω m . We analyze the time evolution of parametric instability which allows predicting the characteristics of precursors of parametric instability. Observation of such precursors may help avoid parametric instability.

radiation: pressure
mirror: surface
LIGO
interferometer
gravitational radiation
mirror: oscillation

References(12)

Figures(0)

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Parametric instabilities and their control in advanced interferometer GW detectors

C. Zhao
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A. Abramovici
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)
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)
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