Quadratic behavior of fiber Bragg grating temperature coefficients

被引：55

作者：

Flockhart, GMH

Maier, RRJ

Barton, JS

MacPherson, WN

Jones, JDC

Chisholm, KE

Zhang, L

Bennion, I

Read, I

Foote, PD

机构：

[1] Heriot Watt Univ, Sch Engn & Phys Sci, Edinburgh EH14 4AS, Midlothian, Scotland

[2] Aston Univ, Photon Res Grp, Elect Engn & Comp Sci Div, Birmingham B4 7ET, W Midlands, England

[3] BAE Syst, Ctr Adv Technol, Bristol BS12 7QW, Avon, England

来源：

APPLIED OPTICS | 2004年 / 43卷 / 13期

关键词：

D O I：

10.1364/AO.43.002744

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We describe the characterization of the temperature and strain responses of fiber Bragg grating sensors by use of an interferometric interrogation technique to provide an absolute measurement of the grating wavelength. The fiber Bragg grating temperature response was found to be nonlinear over the temperature range -70 degreesC to 80 degreesC. The nonlinearity was observed to be a quadratic function of temperature, arising from the linear dependence on temperature of the thermo-optic coefficient of silica glass over this range, and is in good agreement with a theoretical model. (C) 2004 Optical Society of America.

引用

页码：2744 / 2751

页数：8

共 21 条

[1] Simultaneous measurement of strain and temperature using the first- and second-order diffraction wavelengths of Bragg gratings [J].