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Highly sensitive temperature sensor using packaged optical microfiber coupler filled with liquids
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Date
2018
Abstract
A novel temperature sensor based on a Teflon capillary encapsulated 2 × 2 optical microfiber coupler (OMC) filled with refractive index matching liquids is described. The sealed capillary and the filling liquid are demonstrated to enhance the temperature sensing performance, achieving a high temperature sensitivity of 5.3 nm/°C. To the best of our knowledge, the temperature sensor described in this article exhibits the highest sensitivity among the OMC structure based fiber optic temperature sensors. Experimental results also show that it has good repeatability along with a fast response time of 243 ms.
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Description
peer-reviewed
Publisher
Optical Society of America
Citation
Optics Express;26, (1) pp. 356-366
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Lewis_2018_Highly.pdf
Adobe PDF, 3.27 MB
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Funding Information
Key Program for International S&T Cooperation Projects of China, National Natural Science Foundation of China, Key Program for Natural Science Foundation of Heilongjiang Province of China, China Postdoctoral Science Foundation, Open Fund of the State Key Laboratory on Integrated Optoelectronics, Ministry of Education China, Fundamental Research Funds of the Central University Ministry of Education China and the Harbin Engineering University