NOISE PERFORMANCE OF A 72 m SUSPENDED FABRY-PEROT CAVITY

J.C. Dumas, Li Ju, Pablo Barriga, C.N. Zhao, A.A. Woolley, David Blair

    Research output: Chapter in Book/Conference paperOther chapter contribution

    Abstract

    We report on a seismic isolator with a relatively compact 3 m stack, combining new passive isolation techniques. It consists of three cascaded passive 3D isolator stages suspended from an Ultra Low Frequency (ULF) horizontal Robert linkage stage which itself is suspended from a ULF 3D pre-isolator. The 3D isolators use self-damping pendulums and Euler springs for the horizontal and vertical stages respectively, while the 3D pre-isolator is the combination of an inverse pendulum which provides low frequency horizontal pre-isolation, and a LaCoste linkage for low frequency vertical pre-isolation. Two isolators suspending mirror test masses have been built to form a 72 m optical cavity in order to test their performance. We report results which demonstrate residual motion at nanometer level at frequencies above 1 Hz.
    Original languageEnglish
    Title of host publicationINTERNATIONAL JOURNAL OF MODERN PHYSICS D
    Place of PublicationSINGAPORE
    Pages2063-2067
    DOIs
    Publication statusPublished - 2011

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    isolators
    extremely low frequencies
    isolation
    pendulums
    linkages
    low frequencies
    performance tests
    damping
    mirrors
    cavities

    Cite this

    Dumas, J. C., Ju, L., Barriga, P., Zhao, C. N., Woolley, A. A., & Blair, D. (2011). NOISE PERFORMANCE OF A 72 m SUSPENDED FABRY-PEROT CAVITY. In INTERNATIONAL JOURNAL OF MODERN PHYSICS D (pp. 2063-2067). SINGAPORE. https://doi.org/10.1142/S0218271811020184
    Dumas, J.C. ; Ju, Li ; Barriga, Pablo ; Zhao, C.N. ; Woolley, A.A. ; Blair, David. / NOISE PERFORMANCE OF A 72 m SUSPENDED FABRY-PEROT CAVITY. INTERNATIONAL JOURNAL OF MODERN PHYSICS D. SINGAPORE, 2011. pp. 2063-2067
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    abstract = "We report on a seismic isolator with a relatively compact 3 m stack, combining new passive isolation techniques. It consists of three cascaded passive 3D isolator stages suspended from an Ultra Low Frequency (ULF) horizontal Robert linkage stage which itself is suspended from a ULF 3D pre-isolator. The 3D isolators use self-damping pendulums and Euler springs for the horizontal and vertical stages respectively, while the 3D pre-isolator is the combination of an inverse pendulum which provides low frequency horizontal pre-isolation, and a LaCoste linkage for low frequency vertical pre-isolation. Two isolators suspending mirror test masses have been built to form a 72 m optical cavity in order to test their performance. We report results which demonstrate residual motion at nanometer level at frequencies above 1 Hz.",
    author = "J.C. Dumas and Li Ju and Pablo Barriga and C.N. Zhao and A.A. Woolley and David Blair",
    year = "2011",
    doi = "10.1142/S0218271811020184",
    language = "English",
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    pages = "2063--2067",
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    Dumas, JC, Ju, L, Barriga, P, Zhao, CN, Woolley, AA & Blair, D 2011, NOISE PERFORMANCE OF A 72 m SUSPENDED FABRY-PEROT CAVITY. in INTERNATIONAL JOURNAL OF MODERN PHYSICS D. SINGAPORE, pp. 2063-2067. https://doi.org/10.1142/S0218271811020184

    NOISE PERFORMANCE OF A 72 m SUSPENDED FABRY-PEROT CAVITY. / Dumas, J.C.; Ju, Li; Barriga, Pablo; Zhao, C.N.; Woolley, A.A.; Blair, David.

    INTERNATIONAL JOURNAL OF MODERN PHYSICS D. SINGAPORE, 2011. p. 2063-2067.

    Research output: Chapter in Book/Conference paperOther chapter contribution

    TY - CHAP

    T1 - NOISE PERFORMANCE OF A 72 m SUSPENDED FABRY-PEROT CAVITY

    AU - Dumas, J.C.

    AU - Ju, Li

    AU - Barriga, Pablo

    AU - Zhao, C.N.

    AU - Woolley, A.A.

    AU - Blair, David

    PY - 2011

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    N2 - We report on a seismic isolator with a relatively compact 3 m stack, combining new passive isolation techniques. It consists of three cascaded passive 3D isolator stages suspended from an Ultra Low Frequency (ULF) horizontal Robert linkage stage which itself is suspended from a ULF 3D pre-isolator. The 3D isolators use self-damping pendulums and Euler springs for the horizontal and vertical stages respectively, while the 3D pre-isolator is the combination of an inverse pendulum which provides low frequency horizontal pre-isolation, and a LaCoste linkage for low frequency vertical pre-isolation. Two isolators suspending mirror test masses have been built to form a 72 m optical cavity in order to test their performance. We report results which demonstrate residual motion at nanometer level at frequencies above 1 Hz.

    AB - We report on a seismic isolator with a relatively compact 3 m stack, combining new passive isolation techniques. It consists of three cascaded passive 3D isolator stages suspended from an Ultra Low Frequency (ULF) horizontal Robert linkage stage which itself is suspended from a ULF 3D pre-isolator. The 3D isolators use self-damping pendulums and Euler springs for the horizontal and vertical stages respectively, while the 3D pre-isolator is the combination of an inverse pendulum which provides low frequency horizontal pre-isolation, and a LaCoste linkage for low frequency vertical pre-isolation. Two isolators suspending mirror test masses have been built to form a 72 m optical cavity in order to test their performance. We report results which demonstrate residual motion at nanometer level at frequencies above 1 Hz.

    U2 - 10.1142/S0218271811020184

    DO - 10.1142/S0218271811020184

    M3 - Other chapter contribution

    SN - 02182718

    SP - 2063

    EP - 2067

    BT - INTERNATIONAL JOURNAL OF MODERN PHYSICS D

    CY - SINGAPORE

    ER -

    Dumas JC, Ju L, Barriga P, Zhao CN, Woolley AA, Blair D. NOISE PERFORMANCE OF A 72 m SUSPENDED FABRY-PEROT CAVITY. In INTERNATIONAL JOURNAL OF MODERN PHYSICS D. SINGAPORE. 2011. p. 2063-2067 https://doi.org/10.1142/S0218271811020184