28 September 2015 1200°C high-temperature distributed Brillouin optical fiber sensing based on photonics crystal fiber
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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.
© (2015) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Yongkang Dong, Yongkang Dong, Pengbai Xu, Pengbai Xu, Cheng Fu, Cheng Fu, Chenglin Zhang, Chenglin Zhang, Dengwang Zhou, Dengwang Zhou, Taofei Jiang, Taofei Jiang, Hongying Zhang, Hongying Zhang, Zhiwei Lu, Zhiwei Lu, Liang Chen, Liang Chen, Xiaoyi Bao, 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); doi: 10.1117/12.2205329; https://doi.org/10.1117/12.2205329
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