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Novel frequency-agile interrogating system for fibre Bragg grating sensors

Novel frequency-agile interrogating system for fibre Bragg grating sensors
Novel frequency-agile interrogating system for fibre Bragg grating sensors
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
9780819413369
59-65
SPIE - The International Society for Optical Engineering
Xu, Ming Gang
2e0d57ac-52a8-4814-94d5-0ebb04aebcef
Geiger, Harald
f19c4598-aea4-48c8-a252-f392c89ab18b
Archambault, Jean-Luc
15951484-9ecb-438f-8479-42615f65c6e3
Reekie, Laurence
61f4bd1d-7369-4017-90d8-d79ace46424a
Dakin, John P.
04891b9b-5fb5-4245-879e-9e7361adf904
Kersey, Alan D.
Dakin, John P.
Xu, Ming Gang
2e0d57ac-52a8-4814-94d5-0ebb04aebcef
Geiger, Harald
f19c4598-aea4-48c8-a252-f392c89ab18b
Archambault, Jean-Luc
15951484-9ecb-438f-8479-42615f65c6e3
Reekie, Laurence
61f4bd1d-7369-4017-90d8-d79ace46424a
Dakin, John P.
04891b9b-5fb5-4245-879e-9e7361adf904
Kersey, Alan D.
Dakin, John P.

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, SPIE - The International Society for Optical Engineering. pp. 59-65 . (doi:10.1117/12.165920).

Record type: Conference or Workshop Item (Paper)

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

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Published date: 1993
Venue - Dates: Distributed and Multiplexed Fiber Optic Sensors III, Boston, United States, 1993-01-01

Identifiers

Local EPrints ID: 77225
URI: http://eprints.soton.ac.uk/id/eprint/77225
ISBN: 9780819413369
PURE UUID: 8fd28c0b-2e4b-4af1-be17-7bc27109adc8

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Date deposited: 11 Mar 2010
Last modified: 13 Mar 2024 23:47

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Contributors

Author: Ming Gang Xu
Author: Harald Geiger
Author: Jean-Luc Archambault
Author: Laurence Reekie
Author: John P. Dakin
Editor: Alan D. Kersey
Editor: John P. Dakin

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