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

被引：4
作者：
Ba, Dexin [1 ]
Wang, Benzhang [1 ]
Zhou, Dengwang [1 ]
Zhang, Hongying [2 ]
Lu, Zhiwei [1 ]
Chen, Liang [3 ]
Bao, Xiaoyi [3 ]
Dong, Yongkang [1 ]
机构：
[1] Harbin Inst Technol, Natl Key Lab Sci & Technol Tunable Laser, Harbin 150001, Peoples R China
[2] Harbin Univ Sci & Technol, Harbin 150080, Peoples R China
[3] Univ Ottawa, Dept Phys, Fiber Opt Grp, Ottawa, ON K1N 6N5, Canada
来源：
24TH INTERNATIONAL CONFERENCE ON OPTICAL FIBRE SENSORS | 2015年 / 9634卷
关键词：
stimulated Brillouin scattering; optical-fiber sensing; dynamic strain; slope-assisted analysis; CORRELATION-DOMAIN ANALYSIS; TIME-DOMAIN; SCATTERING; RESOLUTION; SENSOR;
D O I：
10.1117/12.2194539
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
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 mu epsilon with the frequency of 13 Hz by using a six-slope analysis.
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页数：4
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