1200°C high-temperature distributed Brillouin optical fiber sensing based on photonics crystal fiber

Yongkang Dong; Pengbai Xu; Cheng Fu; Chenglin Zhang; Dengwang Zhou; Taofei Jiang; Hongying Zhang; Zhiwei Lu; Liang Chen; Xiaoyi Bao

doi:10.1117/12.2205329

28 September 2015 1200°C high-temperature distributed Brillouin optical fiber sensing based on photonics crystal fiber

Yongkang Dong, Pengbai Xu, Cheng Fu, Chenglin Zhang, Dengwang Zhou, Taofei Jiang, Hongying Zhang, Zhiwei Lu, Liang Chen, Xiaoyi Bao

Author Affiliations +

Proceedings Volume 9634, 24th International Conference on Optical Fibre Sensors; 963485 (2015) https://doi.org/10.1117/12.2205329
Event: International Conference on Optical Fibre Sensors (OFS24), 2015, Curitiba, Brazil

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.

Citation Download Citation

Yongkang Dong, Pengbai Xu, Cheng Fu, Chenglin Zhang, Dengwang Zhou, Taofei Jiang, Hongying Zhang, Zhiwei Lu, Liang Chen, and Xiaoyi Bao "1200°C high-temperature distributed Brillouin optical fiber sensing based on photonics crystal fiber", Proc. SPIE 9634, 24th International Conference on Optical Fibre Sensors, 963485 (28 September 2015); https://doi.org/10.1117/12.2205329

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