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Axial Micro-Strain Sensor Based on FM-FBG via Dual-Mode ML-FMF in Sensor Networks

Axial Micro-Strain Sensor Based on FM-FBG via Dual-Mode ML-FMF in Sensor Networks
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摘要 <div style="text-align:justify;"> An in-fiber axial micro-strain sensor based on a Few Mode Fiber Bragg Grating (FM-FBG) is proposed and experimentally characterized. This FM-FBG is in inscribed in a multi-layer few-mode fiber (ML-FMF), and could acquire the change of the axial strain along fibers, which depends on the transmission dips. On account of the distinct dual-mode property, a good stability of this sensor is realized. The two transmission dips could have the different sensing behaviors. Both the propagation characteristics and operation principle of such a sensor are demonstrated in detail. High sensitivity of the FM-FBG, ~4 pm/με and ~4.5 pm/με within the range of 0 με - 1456 με, is experimentally achieved. FM-FBGs could be easily scattered along one fiber. So this sensor may have a great potential of being used in sensor networks. </div> <div style="text-align:justify;"> An in-fiber axial micro-strain sensor based on a Few Mode Fiber Bragg Grating (FM-FBG) is proposed and experimentally characterized. This FM-FBG is in inscribed in a multi-layer few-mode fiber (ML-FMF), and could acquire the change of the axial strain along fibers, which depends on the transmission dips. On account of the distinct dual-mode property, a good stability of this sensor is realized. The two transmission dips could have the different sensing behaviors. Both the propagation characteristics and operation principle of such a sensor are demonstrated in detail. High sensitivity of the FM-FBG, ~4 pm/με and ~4.5 pm/με within the range of 0 με - 1456 με, is experimentally achieved. FM-FBGs could be easily scattered along one fiber. So this sensor may have a great potential of being used in sensor networks. </div>
作者 Xiao Liang Zhaoxin Geng Jingcong Li Pengyu Zhang Wenqiang Liu Xiao Liang;Zhaoxin Geng;Jingcong Li;Pengyu Zhang;Wenqiang Liu(School of Information Engineering, Minzu University of China, Beijing, China;Changchun Electrical Services Section of China Railway Shenyang Group Co., Ltd., Changchun, China;CRRC QISHUYAN Institute Co., Ltd., Changzhou, China)
出处 《Journal of Computer and Communications》 2020年第10期1-6,共6页 电脑和通信(英文)
关键词 Micro-Strain Sensor ML-FMF Dual-Mode Fiber FM-FBG Sensor Network Micro-Strain Sensor ML-FMF Dual-Mode Fiber FM-FBG Sensor Network
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