Novel frequency-agile interrogating system for fibre Bragg grating sensors


Xu, Ming Gang, Geiger, Harald, Archambault, Jean-Luc, Reekie, Laurence and Dakin, John P., (1993) Novel frequency-agile interrogating system for fibre Bragg grating sensors Kersey, Alan D. and Dakin, John P. (eds.) In Distributed and Multiplexed Fiber Optic Sensors III. vol. 2071, The International Society for Optical Engineering., pp. 59-65. (doi:10.1117/12.165920).

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Description/Abstract

We have demonstrated a new frequency-agile system for the interrogation of in-fibre Bragg grating sensors. The scheme involves frequency shift keying (FSK) of the RF drive to an acousto-optic tunable filter (AOTF) to track the wavelength shifts of a Bragg grating. Theoretical studies to derive the optimum frequency deviation for achieving maximum sensitivity are given, and experimental results are presented for temperature measurement. This technique is capable of rapid, random access and very wide tuning range, showing the potential for interrogating multiplexed arrays of Bragg-grating-based sensors

Item Type: Conference or Workshop Item (Paper)
Digital Object Identifier (DOI): doi:10.1117/12.165920
ISBNs: 9780819413369 (print)
Venue - Dates: Distributed and Multiplexed Fiber Optic Sensors III, United States, 1993-01-01
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ePrint ID: 77225
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Date Event
1993Published
Date Deposited: 11 Mar 2010
Last Modified: 18 Apr 2017 20:32
Further Information:Google Scholar
URI: http://eprints.soton.ac.uk/id/eprint/77225

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