Multi-Parameter Sensing Using a Fiber Bragg Grating Inscribed in Dual-Mode Fiber

被引：25
|
作者：
Jiang, Yajun [1 ,2 ]
Liu, Chi [1 ,2 ]
Zhang, Wending [1 ,2 ]
Mao, Dong [1 ,2 ]
Yang, Dexing [1 ,2 ]
Zhao, Jianlin [1 ,2 ]
机构：
[1] Northwestern Polytech Univ, MOE Key Lab Mat Phys & Chem Extraordinary Condit, Xian 710072, Shaanxi, Peoples R China
[2] Northwestern Polytech Univ, Shaanxi Key Lab Opt Informat Technol, Sch Sci, Xian 710072, Shaanxi, Peoples R China
来源：
IEEE PHOTONICS TECHNOLOGY LETTERS | 2017年 / 29卷 / 19期
基金：
中国国家自然科学基金;
关键词：
Multi-parameter sensing; fiber Bragg grating; dual-mode fiber; femtosecond laser; REFRACTIVE-INDEX; FEMTOSECOND LASER; TEMPERATURE; STRAIN;
D O I：
10.1109/LPT.2017.2737013
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We propose a method for simultaneous measurement of strain, temperature, and surrounding refractive index (SRI) using a fiber Bragg grating (FBG) inscribed in dual-mode fiber by femtosecond laser. This FBG not only possesses two Bragg resonances corresponding to LP01 and LP11 modes, respectively, but also shows many strong cladding mode resonances, which are sensitive to SRI. Due to the different responses, the strain, temperature, and SRI can be discriminated simultaneously by measuring the two Bragg resonance wavelengths and the normalized area of cladding mode resonances. The estimated resolutions of this FBG in measuring strain, temperature, and SRI are +/- 6.3 mu epsilon, +/- 0.8 degrees C, and +/- 2.7 x 10(-5) RIU, respectively.
引用
收藏
页码：1607 / 1610
页数：4
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