Dynamic distributed Brillouin optical fiber sensing based on multi-slope analysis

Dexin Ba; Benzhang Wang; Dengwang Zhou; Hongying Zhang; Zhiwei Lu; Liang Chen; Xiaoyi Bao; Yongkang Dong

doi:10.1117/12.2194539

28 September 2015 Dynamic distributed Brillouin optical fiber sensing based on multi-slope analysis

Dexin Ba, Benzhang Wang, Dengwang Zhou, Hongying Zhang, Zhiwei Lu, Liang Chen, Xiaoyi Bao, Yongkang Dong

Proceedings Volume 9634, 24th International Conference on Optical Fibre Sensors; 96344T (2015) https://doi.org/10.1117/12.2194539
Event: International Conference on Optical Fibre Sensors (OFS24), 2015, Curitiba, Brazil

Abstract

We propose and demonstrate a dynamic Brillouin optical fiber sensing based on the multi-slope analysis, which features a large measurement range of strain and the capability of real-time data processing. The multi-slope analysis is realized by using the frequency-agility modulation and it can significantly increase the measurement range compared with the single-slope analysis, while maintaining the advantage of fast data processing time and suitable for real-time monitoring. In experiment, we performed a measurement of strain up to 5000 με with the frequency of 13 Hz by using a six-slope analysis.

Citation Download Citation

Dexin Ba, Benzhang Wang, Dengwang Zhou, Hongying Zhang, Zhiwei Lu, Liang Chen, Xiaoyi Bao, and Yongkang Dong "Dynamic distributed Brillouin optical fiber sensing based on multi-slope analysis", Proc. SPIE 9634, 24th International Conference on Optical Fibre Sensors, 96344T (28 September 2015); https://doi.org/10.1117/12.2194539

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