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Microscopic multi-point temperature sensing based on microfiber double-knot resonators
Authors:Yu Wu  Lan Jia  Tianhu Zhang  Yunjiang Rao  Yuan Gong
Affiliation:1. Department of Electrical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia;2. Photonics Research Center, University of Malaya, 50603 Kuala Lumpur, Malaysia;1. College of Information Science and Engineering, Northeastern University, Shenyang, 110819, China;2. Center for Computer Fundamental Education, JiLin University, Changchun, 130062, China;3. State Key Laboratory of Synthetical Automation for Process Industries, Northeastern University, Shenyang, 110819, China;1. Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang 621900, China;2. Department of Optics and Optical Engineering, University of Science and Technology of China, Hefei 230026, China;3. Science and Technology on Plasma Physics Laboratory, Mianyang 621900, China;4. Collaborative Innovation Center of IFSA (CICIFSA), Shanghai Jiaotong University, Shanghai 200240, China;5. School of Optical-electrical and Computer Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China;6. Deapartment of Electro-Optics and Photonics, University of Dayton, Dayton, OH 45469, USA;1. Department of Electrical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia;2. Faculty of Electrical Engineering, Universiti Teknikal Malaysia Melaka, 76100 Melaka, Malaysia;3. Faculty of Electronic and Computer Engineering, Universiti Teknikal Malaysia Melaka, 76100 Melaka, Malaysia;4. Faculty of Engineering Technology, Universiti Teknikal Malaysia Melaka, 76100 Melaka, Malaysia;5. School of Technology, Assam Don Bosco University, Guwahati, Assam, 781017, India;6. Department of Chemistry, Faculty of Science and Technology, Airlangga University, Surabaya 60115, Indonesia;7. Department of Physics, Faculty of Science and Technology, Airlangga University, Surabaya 60115, Indonesia
Abstract:A novel fiber-optic sensor structure fabricated by cascading two optical microfiber knot resonators (MKRs) is proposed and demonstrated in this paper. A theoretical model for describing the principle of the sensing structure is given and its temperature responses are characterized experimentally. Experimental results show that high-precision and simultaneous multi-point temperature sensing in micro-scale can be achieved. Such a sensing structure also has the potential for achieving dual-parameter measurement to eliminate the cross-talk between two parameters in micro-scale.
Keywords:
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