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Temperature sensor based on a single-mode tapered optical fiber
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A temperature sensor is demonstrated and fabricated by coating the single-mode tapered optical fiber with temperature-sensitive silicone rubber.It works on the change of the evanescent fields in the tapered optical fiber.Small changes in the refractive index of coating film greatly influence the power of evanescent fields, which modulate the transmission optical power in the waist region.The range of temperature measured is from -20 ℃ to 70 ℃.The results show that the temperature sensor has high temperature sensitivity (0.012 mW/℃) and good repeatability.
temperature sensortapered optical fibersilicone rubber
ZHU Shan、XING Jie-wen、PANG Fu-fei、WANG Ting-yun
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Key Laboratory of Specialty Fiber Optics and Optical Access Networks, School of Communication and Information Engineering, Shanghai University, Shanghai 200072, P. R. China
Shanghai Leading Academic Discipline ProjectUniversities Foster Innovation Foundation Projects for Major Projects in Ministry of Education
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