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Title: Fiber Bragg grating cavity sensor for simultaneous measurement of strain and temperature
Authors: Du, WC
Tao, X 
Tam, HY 
Issue Date: Jan-1999
Source: IEEE photonics technology letters, v. 11, no.1, Jan. 1999, p. 105-ajd 1999, p. 105-107
Abstract: A novel and short (5 mm long) fiber grating based sensor with a fiber grating Fabry–Perot cavity (GFPC) structure was fabricated and tested for simultaneous measurement of strain and temperature. The sensor exhibits unique properties that it possesses two spectral peaks within its main reflection band and the normalized peak power difference, in addition to its peak wavelength shift, changes linearly with strain or temperature. The accuracy of this particular sensor in measuring strain and temperature are estimated to be ±30 με in a range from 0 to 3000 με and ±0.4 ℃ from 20 ℃ to 60 ℃, respectively.
Keywords: Fiber Bragg grating
FP cavity
Simultaneous measurement of strain and temperature
Publisher: Institute of Electrical and Electronics Engineers
Journal: IEEE photonics technology letters 
ISSN: 1041-1135
EISSN: 1941-0174
DOI: 10.1109/68.736409
Rights: © 1999 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
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