OE Letters

Simultaneous measurement of pressure and temperature based on processed capillary tube and fiber Bragg grating

[+] Author Affiliations
Yun-Long Bai, Bin Yin, Yan-Hui Qi, You-Chao Jiang, Yue Wu, Shui-Sheng Jian

Beijing Jiaotong University, Institute of Lightwave Technology, Key Laboratory of All Optical Network and Advanced Telecommunication Network of EMC, Jiaoda East Road, Haidian District, Beijing 100044, China

Opt. Eng. 55(8), 080502 (Aug 22, 2016). doi:10.1117/1.OE.55.8.080502
History: Received May 11, 2016; Accepted July 6, 2016
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Abstract.  A hybrid optical fiber structure sensor for simultaneous measurement of temperature and low pressure based on Fabry–Perot (FP) interference and fiber Bragg grating (FBG) is proposed. The FP cavity is fabricated with a capillary pure silica tube, whose one end is surface processed to result in an open FP cavity. The measurement of refractive index change of different pressures has been achieved by monitoring the wavelength shift of the interference pattern in the reflection spectrum. The FP cavity is integrated with the FBG to obtain temperature measurement simultaneously.

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© 2016 Society of Photo-Optical Instrumentation Engineers

Citation

Yun-Long Bai ; Bin Yin ; Yan-Hui Qi ; You-Chao Jiang ; Yue Wu, et al.
"Simultaneous measurement of pressure and temperature based on processed capillary tube and fiber Bragg grating", Opt. Eng. 55(8), 080502 (Aug 22, 2016). ; http://dx.doi.org/10.1117/1.OE.55.8.080502


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