title: Observation of Parametric Instability in Advanced LIGO.
abstract: 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.
authors.affiliation: Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.
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authors.affiliation: Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.
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authors.affiliation: Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.
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authors.affiliation: Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.
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authors.affiliation: Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.
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authors.affiliation: California Institute of Technology, Pasadena, California 91125, USA.
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authors.affiliation: California Institute of Technology, Pasadena, California 91125, USA.
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authors.affiliation: California Institute of Technology, Pasadena, California 91125, USA.
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authors.affiliation: California Institute of Technology, Pasadena, California 91125, USA.
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authors.affiliation: California Institute of Technology, Pasadena, California 91125, USA.
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authors.affiliation: California Institute of Technology, Pasadena, California 91125, USA.
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authors.affiliation: California Institute of Technology, Pasadena, California 91125, USA.
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authors.affiliation: California Institute of Technology, Pasadena, California 91125, USA.
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authors.affiliation: California Institute of Technology, Pasadena, California 91125, USA.
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authors.affiliation: California Institute of Technology, Pasadena, California 91125, USA.
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authors.affiliation: California Institute of Technology, Pasadena, California 91125, USA.
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authors.affiliation: California Institute of Technology, Pasadena, California 91125, USA.
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authors.affiliation: LIGO Livingston Observatory, Livingston, Louisiana 70754, USA.
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authors.affiliation: LIGO Livingston Observatory, Livingston, Louisiana 70754, USA.
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authors.affiliation: LIGO Livingston Observatory, Livingston, Louisiana 70754, USA.
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authors.affiliation: LIGO Livingston Observatory, Livingston, Louisiana 70754, USA.
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authors.affiliation: LIGO Livingston Observatory, Livingston, Louisiana 70754, USA.
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authors.affiliation: LIGO Livingston Observatory, Livingston, Louisiana 70754, USA.
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authors.affiliation: LIGO Livingston Observatory, Livingston, Louisiana 70754, USA.
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authors.affiliation: LIGO Hanford Observatory, Richland, Washington 99352, USA.
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authors.affiliation: LIGO Hanford Observatory, Richland, Washington 99352, USA.
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authors.affiliation: LIGO Hanford Observatory, Richland, Washington 99352, USA.
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authors.affiliation: Louisiana State University, Baton Rouge, Louisiana 70803, USA.
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authors.affiliation: Louisiana State University, Baton Rouge, Louisiana 70803, USA.
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authors.affiliation: Syracuse University, Syracuse, New York 13244, USA.
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authors.affiliation: Columbia University, New York, New York 10027, USA.
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authors.affiliation: University of Florida, Gainesville, Florida 32611, USA.
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authors.affiliation: Australian National University, Canberra, Australian Capital Territory 0200, Australia.
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authors.affiliation: University of Adelaide, Adelaide, South Australia 5005, Australia.
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authors.affiliation: University of Western Australia, Crawley Western Australia 6009, Australia.
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authors.affiliation: University of Western Australia, Crawley Western Australia 6009, Australia.
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