A compact, large-range interferometer for precision measurement and inertial sensing

Sam Cooper; Anna Green; Chris Collins; David Hoyland; Clive Speake; Andreas Freise; Conor Mow-Lowry

doi:10.1088/1361-6382/aab2e9

A compact, large-range interferometer for precision measurement and inertial sensing

Sam Cooper
, Anna Green
, Chris Collins
, David Hoyland
, Clive Speake
, Andreas Freise
, Conor Mow-Lowry

Physics and Astronomy

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

7 Citations (Scopus)

258 Downloads (Pure)

Abstract

We present a compact, fibre-coupled interferometer with high sensitivity and a large working range. We propose to use this interferometer as a readout mechanism for future inertial sensors, removing a major limiting noise source, and in precision positioning systems. The interferometers peak sensitivity is 2 x 10^-14m/√Hz at 70 Hz and 8 x 10^-11m/√Hz at 10 mHz. If deployed on a GS-13 geophone, the resulting inertial sensing output will be dominated by suspension thermal noise from 50 mHz to 2 Hz.

Original language	English
Pages (from-to)	1-6
Journal	Classical and Quantum Gravity
Volume	35
Issue number	9
DOIs	https://doi.org/10.1088/1361-6382/aab2e9
Publication status	Published - 22 Mar 2018

Keywords

astro-ph.IM
physics.ins-det
optical interferometry
homodyne detection
optomechanics

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Cooper_et_al_A_compact_large-range_interferometer_for_precision_measurement_Classical_and_Quantum_Gravity_2018
This is an author-created, un-copyedited version of an article accepted for publication/published in Classical and Quantum Gravity. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at https://doi.org/10.1088/1361-6382/aab2e9
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Cite this

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abstract = "We present a compact, fibre-coupled interferometer with high sensitivity and a large working range. We propose to use this interferometer as a readout mechanism for future inertial sensors, removing a major limiting noise source, and in precision positioning systems. The interferometers peak sensitivity is 2 x 10-14 m/√Hz at 70 Hz and 8 x 10-11 m/√Hz at 10 mHz. If deployed on a GS-13 geophone, the resulting inertial sensing output will be dominated by suspension thermal noise from 50 mHz to 2 Hz.",

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AU - Collins, Chris

AU - Hoyland, David

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AU - Freise, Andreas

AU - Mow-Lowry, Conor

PY - 2018/3/22

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KW - physics.ins-det

KW - optical interferometry

KW - homodyne detection

KW - optomechanics

U2 - 10.1088/1361-6382/aab2e9

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ER -

A compact, large-range interferometer for precision measurement and inertial sensing

Abstract

Keywords

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