DocumentCode
2314793
Title
A novel sensor interrogation technique using chirped fiber grating based Sagnac loop
Author
Zhao, Donghui ; Shu, Xuewen ; Zhang, Lin ; Bennion, Ian
Author_Institution
Electron. Eng., Aston Univ., Birmingham, UK
Volume
2
fYear
2002
fDate
2002
Firstpage
1351
Abstract
We demonstrate a novel and simple sensor interrogation scheme for fiber Bragg grating (FBG) based sensing systems. In this scheme, a chirped FBG based Sagnac loop is used as a wavelength-dependent receiver, and a stable and linear readout response is realised. It is a significant advantage of this scheme that the sensitivity and the measurement wavelength range can be easily adjusted by controlling the chirp of the FBG or using an optical delay line in the Sagnac loop.
Keywords
Bragg gratings; Sagnac interferometers; fibre optic sensors; optical delay lines; sensitivity; FBG-based sensing systems; chirped fiber grating based Sagnac loop; fiber Bragg grating; linear readout response; measurement wavelength range adjustment; optical delay line; sensitivity adjustment; sensor interrogation technique; stable readout response; wavelength-dependent receiver; Bragg gratings; Chirp; Fiber gratings; Optical control; Optical fiber sensors; Optical receivers; Optical sensors; Sagnac interferometers; Sensor systems; Wavelength measurement;
fLanguage
English
Publisher
ieee
Conference_Titel
Sensors, 2002. Proceedings of IEEE
Print_ISBN
0-7803-7454-1
Type
conf
DOI
10.1109/ICSENS.2002.1037316
Filename
1037316
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