Testing the suppression of opto-acoustic parametric interactions using optical feedback control

YaoHui Fan; Lucienne Merrill; ChunNong Zhao; Li Ju; David Blair; Bram Slagmolen; David Hosken; Aidan Brooks; Peter Veitch; Jesper Munch

doi:10.1088/0264-9381/27/8/084028

Testing the suppression of opto-acoustic parametric interactions using optical feedback control

YaoHui Fan
, Lucienne Merrill
, ChunNong Zhao
, Li Ju
, David Blair
, Bram Slagmolen
, David Hosken
, Aidan Brooks
, Peter Veitch
, Jesper Munch

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

11 Citations (Scopus)

Abstract

We report an investigation designed to suppress three-mode opto-acoustic parametric interactions in advanced gravitational-wave detectors, through optical feedback control. In this paper, we present our initial results on the control of parametric instability in a high-finesse Fabry-Pérot cavity using low input laser power. We show that injection of an anti-phase TEM₀₁ mode with appropriate power will optically interfere and suppress the excited high-order mode in the cavity within a few seconds.

Original language	English
Article number	084028
Number of pages	9
Journal	Classical and Quantum Gravity
Volume	27
Issue number	8
DOIs	https://doi.org/10.1088/0264-9381/27/8/084028
Publication status	Published - 21 Apr 2010
Externally published	Yes

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AU - Merrill, Lucienne

AU - Zhao, ChunNong

AU - Ju, Li

AU - Blair, David

AU - Slagmolen, Bram

AU - Hosken, David

AU - Brooks, Aidan

AU - Veitch, Peter

AU - Munch, Jesper

PY - 2010/4/21

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AB - We report an investigation designed to suppress three-mode opto-acoustic parametric interactions in advanced gravitational-wave detectors, through optical feedback control. In this paper, we present our initial results on the control of parametric instability in a high-finesse Fabry-Pérot cavity using low input laser power. We show that injection of an anti-phase TEM01 mode with appropriate power will optically interfere and suppress the excited high-order mode in the cavity within a few seconds.

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Testing the suppression of opto-acoustic parametric interactions using optical feedback control

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