Damping parametric instabilities in future gravitational wave detectors by means of electrostatic actuators

John Miller; Matthew Evans; Lisa Barsotti; Peter Fritschel; Myron MacInnis; Richard Mittleman; Brett Shapiro; Jonathan Soto; Calum Torrie

doi:10.1016/j.physleta.2010.12.032

Damping parametric instabilities in future gravitational wave detectors by means of electrostatic actuators

John Miller^*, Matthew Evans, Lisa Barsotti, Peter Fritschel, Myron MacInnis, Richard Mittleman, Brett Shapiro, Jonathan Soto, Calum Torrie

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

34 Citations (Scopus)

Abstract

It has been suggested that the next generation of interferometric gravitational wave detectors may observe spontaneously excited parametric oscillatory instabilities. We present a method of actively suppressing any such instability through application of electrostatic forces to the interferometers' test masses. Using numerical methods we quantify the actuation force required to damp candidate instabilities and find that such forces are readily achievable. Our predictions are subsequently verified experimentally using prototype Advanced LIGO hardware, conclusively demonstrating the effectiveness of our approach.

Original language	English
Pages (from-to)	788-794
Number of pages	7
Journal	Physics Letters, Section A: General, Atomic and Solid State Physics
Volume	375
Issue number	3
DOIs	https://doi.org/10.1016/j.physleta.2010.12.032
Publication status	Published - 17 Jan 2011

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10.1016/j.physleta.2010.12.032

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title = "Damping parametric instabilities in future gravitational wave detectors by means of electrostatic actuators",

abstract = "It has been suggested that the next generation of interferometric gravitational wave detectors may observe spontaneously excited parametric oscillatory instabilities. We present a method of actively suppressing any such instability through application of electrostatic forces to the interferometers' test masses. Using numerical methods we quantify the actuation force required to damp candidate instabilities and find that such forces are readily achievable. Our predictions are subsequently verified experimentally using prototype Advanced LIGO hardware, conclusively demonstrating the effectiveness of our approach.",

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T1 - Damping parametric instabilities in future gravitational wave detectors by means of electrostatic actuators

AU - Miller, John

AU - Evans, Matthew

AU - Barsotti, Lisa

AU - Fritschel, Peter

AU - MacInnis, Myron

AU - Mittleman, Richard

AU - Shapiro, Brett

AU - Soto, Jonathan

AU - Torrie, Calum

PY - 2011/1/17

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N2 - It has been suggested that the next generation of interferometric gravitational wave detectors may observe spontaneously excited parametric oscillatory instabilities. We present a method of actively suppressing any such instability through application of electrostatic forces to the interferometers' test masses. Using numerical methods we quantify the actuation force required to damp candidate instabilities and find that such forces are readily achievable. Our predictions are subsequently verified experimentally using prototype Advanced LIGO hardware, conclusively demonstrating the effectiveness of our approach.

AB - It has been suggested that the next generation of interferometric gravitational wave detectors may observe spontaneously excited parametric oscillatory instabilities. We present a method of actively suppressing any such instability through application of electrostatic forces to the interferometers' test masses. Using numerical methods we quantify the actuation force required to damp candidate instabilities and find that such forces are readily achievable. Our predictions are subsequently verified experimentally using prototype Advanced LIGO hardware, conclusively demonstrating the effectiveness of our approach.

KW - Electrostatic drive

KW - Gravitational wave

KW - Interferometer

KW - Parametric instability

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JO - Physics Letters, Section A: General, Atomic and Solid State Physics

JF - Physics Letters, Section A: General, Atomic and Solid State Physics

IS - 3

ER -

Damping parametric instabilities in future gravitational wave detectors by means of electrostatic actuators

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