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5 November 2020 Fiber laser temperature sensor based on SMF-TMCF-SMF structure in 2 μm band
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Proceedings Volume 11569, AOPC 2020: Optical Information and Network; 115690O (2020) https://doi.org/10.1117/12.2580260
Event: Applied Optics and Photonics China (AOPC 2020), 2020, Beijing, China
Abstract
A single mode fiber-tapered multi-core fiber-single mode fiber (SMFTMCF-SMF) structure for the temperature measurement with fiber ring cavity laser at 2 μm band is proposed and demonstrated. The sensor consists of a tapered MCF spliced between two single-mode fibers. By tapering the MCF, the modal fields of the different multi-cores run out and then couple with each other. Experimental results show that the proposed laser works stably at the resonant wavelength of 1979.2 nm at ambient temperature. A sensitivity of -4 pm/°C was obtained with the temperature changing from 70°C to 35°C.
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Ying Wang, Yajie Chen, Weijuan Chen, Zhihao Chen, and Xianzeng Zhang "Fiber laser temperature sensor based on SMF-TMCF-SMF structure in 2 μm band", Proc. SPIE 11569, AOPC 2020: Optical Information and Network, 115690O (5 November 2020); https://doi.org/10.1117/12.2580260
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