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Proceedings Paper

1200°C high-temperature distributed Brillouin optical fiber sensing based on photonics crystal fiber
Author(s): Yongkang Dong; Pengbai Xu; Cheng Fu; Chenglin Zhang; Dengwang Zhou; Taofei Jiang; Hongying Zhang; Zhiwei Lu; Liang Chen; Xiaoyi Bao
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Paper Abstract

We demonstrate an up to 1200°C high-temperature distributed Brillouin sensing based on a pure-silica photonics crystal fiber. A Brillouin frequency shift (BFS) hopping is observed between 800°C-900°C for the first annealing process and after that the BFS exhibits the stability and repeatability with a measurement accuracy as high as ±2 °C . The BFS dependence on temperature in the range of room temperature to 1200°C agrees well with an exponential function instead of a linear function, which is mainly attributed by the change of the acoustic velocity in a silica fiber.

Paper Details

Date Published: 28 September 2015
PDF: 4 pages
Proc. SPIE 9634, 24th International Conference on Optical Fibre Sensors, 963485 (28 September 2015); doi: 10.1117/12.2205329
Show Author Affiliations
Yongkang Dong, Harbin Institute of Technology (China)
Pengbai Xu, Harbin Institute of Technology (China)
Cheng Fu, Harbin Institute of Technology (China)
Chenglin Zhang, Harbin Institute of Technology (China)
Dengwang Zhou, Harbin Institute of Technology (China)
Taofei Jiang, Harbin Institute of Technology (China)
Hongying Zhang, Harbin Univ. of Science and Technology (China)
Zhiwei Lu, Harbin Institute of Technology (China)
Liang Chen, Univ. of Ottawa (Canada)
Xiaoyi Bao, Univ. of Ottawa (Canada)

Published in SPIE Proceedings Vol. 9634:
24th International Conference on Optical Fibre Sensors
Hypolito José Kalinowski; José Luís Fabris; Wojtek J. Bock, Editor(s)

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