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Distributed grating sensors using low-coherence reflectometry

Distributed grating sensors using low-coherence reflectometry
Distributed grating sensors using low-coherence reflectometry
Distributed grating sensors have recently been interrogated with low-coherence reflectometry. Initial results have been enhanced using two new and versatile configurations. The first system tracks the wavelength using a closed-loop scheme, while the second system scans the distance using an open-loop approach. Arbitrary strain and temperature profiles along gratings have been examined with 300 µm spatial resolution and 5.4 µ.epsilon/√Hz accuracy. A theoretical model of the interrogation technique is derived and the predicted performance limits are examined experimentally.
0733-8724
2076-2082
Volanthen, M.
594a50e8-d66e-4b9f-a51d-663db55afdcf
Geiger, H.
ed078c74-a1f0-4816-aee5-6adec67b9ed3
Dakin, J.P.
04891b9b-5fb5-4245-879e-9e7361adf904
Volanthen, M., Geiger, H. and Dakin, J.P. (1997) Distributed grating sensors using low-coherence reflectometry Journal of Lightwave Technology, 15, (11), pp. 2076-2082. (doi:10.1109/50.641525).

Volanthen, M., Geiger, H. and Dakin, J.P. (1997) Distributed grating sensors using low-coherence reflectometry Journal of Lightwave Technology, 15, (11), pp. 2076-2082. (doi:10.1109/50.641525).

Record type: Article

Abstract

Distributed grating sensors have recently been interrogated with low-coherence reflectometry. Initial results have been enhanced using two new and versatile configurations. The first system tracks the wavelength using a closed-loop scheme, while the second system scans the distance using an open-loop approach. Arbitrary strain and temperature profiles along gratings have been examined with 300 µm spatial resolution and 5.4 µ.epsilon/√Hz accuracy. A theoretical model of the interrogation technique is derived and the predicted performance limits are examined experimentally.

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Published date: 1997
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 77970
URI: http://eprints.soton.ac.uk/id/eprint/77970
ISSN: 0733-8724
PURE UUID: 7b993538-94fd-4eff-9ca8-a87431fca585

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Date deposited: 11 Mar 2010
Last modified: 18 Jul 2017 23:28

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Contributors

Author: M. Volanthen
Author: H. Geiger
Author: J.P. Dakin

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