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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