Observation of Parametric Instability in Advanced LIGO

Feb 20, 2015
6 pages
Published in:
  • Phys.Rev.Lett. 114 (2015) 16, 161102
  • Published: Apr 23, 2015
e-Print:
Report number:
  • LIGO-P1400254

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Abstract: (APS)
Parametric instabilities have long been studied as a potentially limiting effect in high-power interferometric gravitational wave detectors. Until now, however, these instabilities have never been observed in a kilometer-scale interferometer. In this Letter, we describe the first observation of parametric instability in a gravitational wave detector, and the means by which it has been removed as a barrier to progress.
  • 04.80.Nn
  • 42.50.Wk
  • 42.79.Jq
  • 95.55.Ym
  • LIGO
  • detector: stability
  • gravitational radiation detector: interferometer