关键词: 光纤光学/
光纤传感器/
光纤激光器/
随机激光
English Abstract
Recent progress in ultra-long distributed fiber-optic sensing
Rao Yun-Jiang1.Key Laboratory of Optical Fiber Sensing and Communications(Education Ministry of China), University of Electronic Science and Technology of China, Chengdu 611731, China
Fund Project:Project supported by the Natural Science Foundation of China (Grant Nos. 61290312, 41527805), Innovation Team of Ministry of Education, China (Grant No. IRT1218) and the 111 Project, China (Grant No. B14039).Received Date:19 January 2017
Accepted Date:10 March 2017
Published Online:05 April 2017
Abstract:Distributed fiber-optic sensing (DFOS) is one of the most important parts in the fiber-optic sensing field, due to the following advantages:1) there is no need to manufacture sensors on the fiber; 2) fibers are able to realize transmission and detection simultaneously; 3) long-distance/large-scale sensing and networking can be accomplished prospectively; 4) the spatial distribution and measurement information of physical parameters such as temperature, strain and vibration, can be obtained continuously along the fiber link, and the number of sensing points on a single fiber can be up to several tens of thousands. Due to the above tremendous superiority, DFOS has found wide application prospects, including perimeter security, oil/gas exploration, electrical facilities and structure monitoring, etc. This paper overviews recent progress in ultra-long distributed fiber-optic static (Brillouin optical time-domain analyzer) and dynamic (phase-sensitive optical time-domain reflectometer) sensing at Key Laboratory of Optical Fiber Sensing and Communications, UESTC. This paper summarizes our work on both basic and application studies.
Keywords: fiber optics/
fiber-optic sensors/
fiber lasers/
random lasers
