Observation of parametric instability in advanced LIGO

M. Evans, S. Gras, P. Fritschel, J. Miller, L. Barsotti, D. Martynov, A. Brooks, D. Coyne, R. Abbott, R.X. Adhikari, K. Arai, R. Bork, B. Kells, J. Rollins, N. Smith-Lefebvre, G. Vajente, H. Yamamoto, C. Adams, S. Aston, J. BetzweiserV. Frolov, A. Mullavey, A. Pele, J. Romie, M. Thomas, K. Thorne, S. Dwyer, K. Izumi, K. Kawabe, D. Sigg, R. Derosa, A. Effler, K. Kokeyama, S. Ballmer, T.J. Massinger, A. Staley, M. Heinze, C. Mueller, H. Grote, R. Ward, E. King, David Blair, Li Ju, Chunnong Zhao

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    Abstract

    © 2015 American Physical Society. 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.
    Original languageEnglish
    Pages (from-to)161102-1 - 161102-6
    JournalPhysical Review Letters
    Volume114
    DOIs
    Publication statusPublished - 2015

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