Simultaneous interrogation of interferometric and Bragg grating sensors
Simultaneous interrogation of interferometric and Bragg grating sensors
A new method for the simultaneous interrogation of conventional two-beam interferometers and Bragg grating sensors is proposed and demonstrated. An unbalanced Mach-Zehnder interferometer illuminated by a low coherence source is used to act as a wavelength tunable source for the grating and as a path matched filter for a Fizeau cavity. The technique gives high phase resolution. The grating sensor gave a dynamic strain resolution of approximately equals 0.05 µ.epsilon/√Hz at 20Hz and the interferometric resolution was better than 1 mrad/√Hz at 20Hz, corresponding to an rms mirror displacement of 0.08nm.
SPIE - The International Society for Optical Engineering
Brady, G.P.
7cc88d11-84a0-455f-97ba-ed53509782a5
Kalli, Kyriacos
52c6fd86-65ac-4365-ae30-109c9bbce726
Webb, David J.
152e6ec6-b96b-481d-968b-4293e7bd82c5
Jackson, David A.
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Reekie, Laurence
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Archambault, Jean-Luc
15951484-9ecb-438f-8479-42615f65c6e3
1995
Brady, G.P.
7cc88d11-84a0-455f-97ba-ed53509782a5
Kalli, Kyriacos
52c6fd86-65ac-4365-ae30-109c9bbce726
Webb, David J.
152e6ec6-b96b-481d-968b-4293e7bd82c5
Jackson, David A.
f3ceeadd-2d23-4b10-9477-9961ceed799a
Reekie, Laurence
61f4bd1d-7369-4017-90d8-d79ace46424a
Archambault, Jean-Luc
15951484-9ecb-438f-8479-42615f65c6e3
Brady, G.P., Kalli, Kyriacos, Webb, David J., Jackson, David A., Reekie, Laurence and Archambault, Jean-Luc
(1995)
Simultaneous interrogation of interferometric and Bragg grating sensors.
Dakin, John P. and Kersey, Alan D.
(eds.)
In Distributed and Multiplexed Fiber Optic Sensors V.
vol. 2507,
SPIE - The International Society for Optical Engineering..
(doi:10.1117/12.219627).
Record type:
Conference or Workshop Item
(Paper)
Abstract
A new method for the simultaneous interrogation of conventional two-beam interferometers and Bragg grating sensors is proposed and demonstrated. An unbalanced Mach-Zehnder interferometer illuminated by a low coherence source is used to act as a wavelength tunable source for the grating and as a path matched filter for a Fizeau cavity. The technique gives high phase resolution. The grating sensor gave a dynamic strain resolution of approximately equals 0.05 µ.epsilon/√Hz at 20Hz and the interferometric resolution was better than 1 mrad/√Hz at 20Hz, corresponding to an rms mirror displacement of 0.08nm.
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More information
Published date: 1995
Venue - Dates:
Distributed and Multiplexed Fiber Optic Sensors V, Munich, Germany, 1995-01-01
Organisations:
Optoelectronics Research Centre
Identifiers
Local EPrints ID: 77032
URI: http://eprints.soton.ac.uk/id/eprint/77032
PURE UUID: 0925ea95-e6a6-4ad0-9c4d-75ee8eb905c3
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Date deposited: 11 Mar 2010
Last modified: 13 Mar 2024 23:42
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Contributors
Author:
G.P. Brady
Author:
Kyriacos Kalli
Author:
David J. Webb
Author:
David A. Jackson
Author:
Laurence Reekie
Author:
Jean-Luc Archambault
Editor:
John P. Dakin
Editor:
Alan D. Kersey
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