Abstract
A high-sensitivity distributed transverse load sensor based on Brillouin dynamic gratings (BDGs) is proposed and demonstrated experimentally for the first time, to the best of our knowledge. The principle is to measure the transverse-load-induced birefringence change through exciting and probing a BDG in an elliptical-core polarization-maintaining fiber. A distributed measurement of transverse load is demonstrated experimentally using a 10 m sensing fiber, which features high sensitivity to a transverse load with a measurement accuracy as high as at a 20 cm spatial resolution.
© 2015 Optical Society of America
Full Article | PDF ArticleMore Like This
Lei Teng, Hongying Zhang, Yongkang Dong, Dengwang Zhou, Taofei Jiang, Wei Gao, Zhiwei Lu, Liang Chen, and Xiaoyi Bao
Opt. Lett. 41(18) 4413-4416 (2016)
Yong Hyun Kim and Kwang Yong Song
Opt. Lett. 42(15) 3036-3039 (2017)
Yicheng Zhu, Xingliang Wu, Kangbo Wang, Wenlan Shuai, Jianzhong Zhang, Lijun Qiao, Tao Wang, Shaohua Gao, and Mingjiang Zhang
Opt. Lett. 46(23) 5814-5817 (2021)