Simultaneous Strain and Temperature Measurement Based on Chaotic Brillouin Optical Correlation-Domain Analysis in Large-Effective-Area Fibers

作者: Xiaocheng Zhang , Shuangshuang Liu , Jianzhong Zhang , Lijun Qiao , Tao Wang

DOI: 10.1007/S13320-020-0609-Y

关键词:

摘要: Chaotic Brillouin optical correlation domain analysis (BOCDA) has been proposed and experimentally demonstrated with the advantage of high spatial resolution. However, it faces the same issue of the temperature and strain cross-sensitivity. In this paper, the simultaneous measurement of temperature and strain can be preliminarily achieved by analyzing the two Brillouin frequencies of the chaotic laser in a large-effective-area fiber (LEAF). A temperature resolution of 1 °C and a strain resolution of 20 µε can be obtained with a spatial resolution of 3.9 cm. The actual temperature and strain measurement errors are 0.37 °C and 10 µε, respectively, which are within the maximum measurement errors.

参考文章(27)
Yosuke Mizuno, Zuyuan He, Kazuo Hotate, Measurement range enlargement in Brillouin optical correlation-domain reflectometry based on temporal gating scheme Optics Express. ,vol. 17, pp. 9040- 9046 ,(2009) , 10.1364/OE.17.009040
Yosuke Mizuno, Weiwen Zou, Zuyuan He, Kazuo Hotate, Proposal of Brillouin optical correlation-domain reflectometry (BOCDR) Optics Express. ,vol. 16, pp. 12148- 12153 ,(2008) , 10.1364/OE.16.012148
Raphael Cohen, Yosef London, Yair Antman, Avi Zadok, Brillouin optical correlation domain analysis with 4 millimeter resolution based on amplified spontaneous emission Optics Express. ,vol. 22, pp. 12070- 12078 ,(2014) , 10.1364/OE.22.012070
Julian D. C. Jones, Review of Fibre Sensor Techniques for Temperature-Strain Discrimination 12th International Conference on Optical Fiber Sensors (1997), paper OTuC1. ,(1997) , 10.1364/OFS.1997.OTUC1
Ji Ho Jeong, Kwanil Lee, Kwang Yong Song, Je-Myung Jeong, Sang Bae Lee, Differential measurement scheme for Brillouin optical correlation domain analysis. Optics Express. ,vol. 20, pp. 27094- 27101 ,(2012) , 10.1364/OE.20.027094
David Elooz, Yair Antman, Nadav Levanon, Avi Zadok, High-resolution long-reach distributed Brillouin sensing based on combined time-domain and correlation-domain analysis Optics Express. ,vol. 22, pp. 6453- 6463 ,(2014) , 10.1364/OE.22.006453