Parametric instability in gravitational wave detectors

    Research output: ThesisDoctoral Thesis

    233 Downloads (Pure)

    Abstract

    This thesis describes experimental studies of three mode parametric instability, an optomechanical instability that affects advanced gravitational wave detectors. Experiments described include the first observations of free running parametric instability in an 80m high power optical cavity, a proposed novel control technique using thermal modulation, the first experimental demonstration of electrostatic feedback control of parametric instability and the first demonstration of three mode interaction monitoring to measure changes in temperature distribution in Advanced LIGO testmasses. The successful work controlling parametric instability has been demonstrated with the operation of Advanced LIGO in 2015-2017 with minimal disruption from parametric instabilities.
    Original languageEnglish
    QualificationDoctor of Philosophy
    Awarding Institution
    • The University of Western Australia
    Thesis sponsors
    Award date18 Sep 2017
    DOIs
    Publication statusPublished - 2017

    Fingerprint

    gravitational waves
    detectors
    LIGO (observatory)
    theses
    feedback control
    temperature distribution
    electrostatics
    modulation
    cavities
    interactions

    Cite this

    @phdthesis{a901e7ac4a7d4dc5b95fc4638766ae7b,
    title = "Parametric instability in gravitational wave detectors",
    abstract = "This thesis describes experimental studies of three mode parametric instability, an optomechanical instability that affects advanced gravitational wave detectors. Experiments described include the first observations of free running parametric instability in an 80m high power optical cavity, a proposed novel control technique using thermal modulation, the first experimental demonstration of electrostatic feedback control of parametric instability and the first demonstration of three mode interaction monitoring to measure changes in temperature distribution in Advanced LIGO testmasses. The successful work controlling parametric instability has been demonstrated with the operation of Advanced LIGO in 2015-2017 with minimal disruption from parametric instabilities.",
    keywords = "Parametric instability, Gravitational wave detectors, Optomechanics, Acoustics, Radiation pressure, Material properties, Cosmology, Gravitational waves",
    author = "Blair, {Carl Darius}",
    year = "2017",
    doi = "10.4225/23/59dd76f7f0758",
    language = "English",
    school = "The University of Western Australia",

    }

    Blair, CD 2017, 'Parametric instability in gravitational wave detectors', Doctor of Philosophy, The University of Western Australia. https://doi.org/10.4225/23/59dd76f7f0758

    Parametric instability in gravitational wave detectors. / Blair, Carl Darius.

    2017.

    Research output: ThesisDoctoral Thesis

    TY - THES

    T1 - Parametric instability in gravitational wave detectors

    AU - Blair, Carl Darius

    PY - 2017

    Y1 - 2017

    N2 - This thesis describes experimental studies of three mode parametric instability, an optomechanical instability that affects advanced gravitational wave detectors. Experiments described include the first observations of free running parametric instability in an 80m high power optical cavity, a proposed novel control technique using thermal modulation, the first experimental demonstration of electrostatic feedback control of parametric instability and the first demonstration of three mode interaction monitoring to measure changes in temperature distribution in Advanced LIGO testmasses. The successful work controlling parametric instability has been demonstrated with the operation of Advanced LIGO in 2015-2017 with minimal disruption from parametric instabilities.

    AB - This thesis describes experimental studies of three mode parametric instability, an optomechanical instability that affects advanced gravitational wave detectors. Experiments described include the first observations of free running parametric instability in an 80m high power optical cavity, a proposed novel control technique using thermal modulation, the first experimental demonstration of electrostatic feedback control of parametric instability and the first demonstration of three mode interaction monitoring to measure changes in temperature distribution in Advanced LIGO testmasses. The successful work controlling parametric instability has been demonstrated with the operation of Advanced LIGO in 2015-2017 with minimal disruption from parametric instabilities.

    KW - Parametric instability

    KW - Gravitational wave detectors

    KW - Optomechanics

    KW - Acoustics

    KW - Radiation pressure

    KW - Material properties

    KW - Cosmology

    KW - Gravitational waves

    U2 - 10.4225/23/59dd76f7f0758

    DO - 10.4225/23/59dd76f7f0758

    M3 - Doctoral Thesis

    ER -