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Proceedings Paper

Pressure and temperature discrimination based on dual-FBG written in microstructured fiber and standard fiber
Author(s): Chuang Wu; Yang Zhang; Bai-Ou Guan
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Paper Abstract

We experimentally demonstrate a novel fiber-optic pressure and temperature sensor using dual-FBG written in grapefruit microstructured fiber (GMF) and standard single-mode fiber (SMF). The pressure sensitivity of FBG in GMF is much larger than that of SMF because the large air holes in the cross section of GMF make it experience larger axial strain than SMF in the presence of hydrostatic pressure. While the temperature responses of the two FBGs are almost the same due to the similar material composition in the fiber cores. Hence, pressure and temperature can be simultaneously determined.

Paper Details

Date Published: 18 May 2011
PDF: 4 pages
Proc. SPIE 7753, 21st International Conference on Optical Fiber Sensors, 775398 (18 May 2011); doi: 10.1117/12.883777
Show Author Affiliations
Chuang Wu, Dalian Univ. of Technology (China)
Yang Zhang, Dalian Univ. of Technology (China)
Bai-Ou Guan, Jinan Univ. (China)


Published in SPIE Proceedings Vol. 7753:
21st International Conference on Optical Fiber Sensors
Jacques Albert; Wojtek J. Bock, Editor(s)

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