首页|Micro-bending sensing based on single-mode fiber spliced multimode fiber Bragg grating structure
Micro-bending sensing based on single-mode fiber spliced multimode fiber Bragg grating structure
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NSTL
Elsevier
? 2021 Elsevier B.V.Fiber Bragg grating (FBG) is a commonly used optical fiber sensing structure. FBG bent sensors in multimode fiber have been achieved. However, the structure and manufacturing process are complex. In the present study, we designed a simple structure that composed of an ordinary single-mode fiber (SMF) and a section of multimode fiber (MMF) with a FBG. It can realize the dual-parameter sensing of micro-bending and temperature simultaneously. The experimental results suggested that the structure is sensitive to micro-bending and temperature, and the sensitivities do not interfere with each other. The temperature sensitivity is 13.4 pm/°C, and the maximum bending sensitivity is 23.03 dB/m?1.
Bragg gratingFiber sensorMicro-bending
Sun X.、Zhang L.、Zeng L.、Hu Y.、Duan J.-A.
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State Key Laboratory of High Performance Complex Manufacturing College of Mechanical and Electrical Engineering Central South University
NSTL
Elsevier
