Temperature and strain discrimination using a single tilted fibre Bragg grating

被引：116

作者：

Chehura, Edmon ^{[1
]}

James, Stephen W. ^{[1
]}

Tatam, Ralph P. ^{[1
]}

机构：

[1] Cranfield Univ, Sch Engn, Engn Photon Grp, Cranfield MK43 0AL, Beds, England

来源：

OPTICS COMMUNICATIONS | 2007年 / 275卷 / 02期

基金：

英国工程与自然科学研究理事会;

关键词：

temperature; strain; sensor; tilted fibre Bragg grating; FBG; TFBG; WRITTEN; GERMANOSILICATE; DEPENDENCE; SENSOR;

D O I：

10.1016/j.optcom.2007.03.043

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A fibre optic sensor capable of discriminating between temperature and strain, using a single fibre Bragg grating, is presented. The technique exploits the core-cladding mode coupling of a tilted fibre Bragg grating (TFBG). The core and cladding modes exhibit different thermal sensivities, while the strain sensivities are approximately equal. Monitoring the core-core mode coupling resonance and the core-cladding mode coupling resonance of the TFBG spectrum allows the separation of the temperature and strain induced wavelength shifts. (c) 2007 Elsevier B.V. All rights reserved.

引用

收藏

页码：344 / 347

页数：4

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