Simultaneous interrogation of interferometric and Bragg grating sensors


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, The International Society for Optical Engineering.. (doi:10.1117/12.219627).

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Description/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??/?Hz at 20Hz and the interferometric resolution was better than 1 mrad/?Hz at 20Hz, corresponding to an rms mirror displacement of 0.08nm

Item Type: Conference or Workshop Item (Paper)
Digital Object Identifier (DOI): doi:10.1117/12.219627
Venue - Dates: Distributed and Multiplexed Fiber Optic Sensors V, Germany, 1995-01-01
Subjects:
ePrint ID: 77032
Date :
Date Event
1995Published
Date Deposited: 11 Mar 2010
Last Modified: 18 Apr 2017 20:34
Further Information:Google Scholar
URI: http://eprints.soton.ac.uk/id/eprint/77032

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