Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.14279/2396
Title: Simultaneous interrogation of interferometric and bragg grating sensors
Authors: Kalli, Kyriacos 
Johnson, David A. 
Webb, David J. 
metadata.dc.contributor.other: Καλλή, Κυριάκος
Major Field of Science: Engineering and Technology
Field Category: Electrical Engineering - Electronic Engineering - Information Engineering
Keywords: Bragg gratings;Diffraction gratings;Mirrors;Interferometry
Issue Date: Jun-1995
Source: (1995) Proceedings of SPIE - The International Society for Optical Engineering, 2507, pp. 218-224; Distributed and Multiplexed Fiber Optic Sensors V,22-23 June 1995,Munich, Germany
Conference: Distributed and Multiplexed Fiber Optic Sensors V 
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 ≈0.05 με/√Hz at 20 Hz and the interferometric resolution was better than 1 mrad/√Hz at 20 Hz, corresponding to an rms mirror displacement of 0.08 nm.
ISBN: 978-081941865-4
ISSN: 0277-786X
DOI: 10.1117/12.219627
Rights: © 1995 SPIE.
Type: Conference Papers
Affiliation: University of Kent at Canterbury 
Affiliation : University of Kent at Canterbury 
Publication Type: Peer Reviewed
Appears in Collections:Δημοσιεύσεις σε συνέδρια /Conference papers or poster or presentation

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