Testing the suppression of opto-acoustic parametric interactions using optical feedback control

Details Testing the suppression of opto-acoustic parametric interactions using optical feedback control Testing the suppression of opto-acoustic parametric interactions using optical feedback control

Apr 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010cqgra..27h4028f&link_type=abstract

Classical and Quantum Gravity, Volume 27, Issue 8, pp. 084028 (2010).

Physics

Scientific paper

We report an investigation designed to suppress three-mode opto-acoustic parametric interactions in advanced gravitational-wave detectors, through optical feedback control. In this paper, we present our initial results on the control of parametric instability in a high-finesse Fabry-Pérot cavity using low input laser power. We show that injection of an anti-phase TEM01 mode with appropriate power will optically interfere and suppress the excited high-order mode in the cavity within a few seconds.

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