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Interrogation of fibre-optic interferometric sensors using an acousto-optic tunable filter

Interrogation of fibre-optic interferometric sensors using an acousto-optic tunable filter
Interrogation of fibre-optic interferometric sensors using an acousto-optic tunable filter
A new technique for the interrogation of interferometric-based fibre-optic sensors using an acousto-optic tunable filter (AOTF) is demonstrated. The scheme involves frequency shift keying (FSK) of the RF drive to the AOTF to track the 3hift of a single fringe peak from an interferometric sensor. Experimental results are presented for a Fizeau interferometer. The technique provides high accuracy, plus a large unambiguous tracking range free from interruptions.
0013-5194
1487-1488
Xu, M.G.
9cd111ff-5235-42c8-8a89-47899e7e8a26
Geiger, H.
ed078c74-a1f0-4816-aee5-6adec67b9ed3
Dakin, J.P.
04891b9b-5fb5-4245-879e-9e7361adf904
Xu, M.G.
9cd111ff-5235-42c8-8a89-47899e7e8a26
Geiger, H.
ed078c74-a1f0-4816-aee5-6adec67b9ed3
Dakin, J.P.
04891b9b-5fb5-4245-879e-9e7361adf904

Xu, M.G., Geiger, H. and Dakin, J.P. (1995) Interrogation of fibre-optic interferometric sensors using an acousto-optic tunable filter. Electronics Letters, 31 (17), 1487-1488. (doi:10.1049/el:19951037).

Record type: Article

Abstract

A new technique for the interrogation of interferometric-based fibre-optic sensors using an acousto-optic tunable filter (AOTF) is demonstrated. The scheme involves frequency shift keying (FSK) of the RF drive to the AOTF to track the 3hift of a single fringe peak from an interferometric sensor. Experimental results are presented for a Fizeau interferometer. The technique provides high accuracy, plus a large unambiguous tracking range free from interruptions.

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Published date: 1995
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Identifiers

Local EPrints ID: 78137
URI: http://eprints.soton.ac.uk/id/eprint/78137
DOI: doi:10.1049/el:19951037
ISSN: 0013-5194
PURE UUID: b2b47b6a-5ac1-4fa0-9074-cdffeaa8e61e

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Date deposited: 11 Mar 2010
Last modified: 14 Mar 2024 00:07

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Contributors

Author: M.G. Xu
Author: H. Geiger
Author: J.P. Dakin

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