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8 October 2015 High temperature sensitivity fiber sensor based on M-Z interferometer fabricated by suspended dual-core hollow fiber
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Proceedings Volume 9679, AOPC 2015: Optical Fiber Sensors and Applications; 96790W (2015) https://doi.org/10.1117/12.2199811
Event: Applied Optics and Photonics China (AOPC2015), 2015, Beijing, China
Abstract
We successfully fabricate and demonstrate a type of in-line M-Z interferometer by using single mode fiber and suspended dual-core hollow fiber. We fuse one section of dual-core hollow fiber (about 5-10cm length used as interferometer arms) with two part of single mode fiber by arc discharging on their cross sections. After this new M-Z interferometer’s fabrication and related experiments, we improved it by absorbing drops of alcohol in its dual-core hollow body which can do much of contributions to its sensitivity. With bunches of temperature experiments conducted, we find this new interferometer has a good temperature sensitivity highly as 1.751nm/°C (from 20 to 100 °C) and interferometer with alcohol inside has a better temperature sensitivity highly as 3.015nm/ °C (from 20 to 60 °C) respectively.
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Hongyi Zeng, Tao Geng, Wenlei Yang, Maowei An, and Fan Yang "High temperature sensitivity fiber sensor based on M-Z interferometer fabricated by suspended dual-core hollow fiber", Proc. SPIE 9679, AOPC 2015: Optical Fiber Sensors and Applications, 96790W (8 October 2015); https://doi.org/10.1117/12.2199811
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