期刊
IEEE PHOTONICS JOURNAL
卷 14, 期 1, 页码 -出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JPHOT.2022.3144156
关键词
Temperature measurement; Temperature sensors; Optical fiber sensors; Interference; Optical fibers; Bending; Sensitivity; Anti-resonant reflection waveguide; fiber ring-shaped structure; RI measurement; temperature measurement
资金
- National Key Research and Development Program of China [2018YFB1800901, 2018YFB1800905]
- National Natural Science Foundation of China [62075097, 62075038, 61975084, 61935005, 61835005, 61822507, 62005125, 61775098, 61875248, 61727817, U2001601, 62035018, 61720106015, 61935011]
- Open Fund of IPOC (BUPT)
- Jiangsu Talent of Innovation and Entrepreneurship
- Jiangsu Team of Innovation and Entrepreneurship
A novel optical fiber sensor based on cascade anti-resonant reflection waveguide (ARRW) and fiber ring-shaped structure (FRSS) is proposed and experimentally demonstrated for simultaneous measurement of refractive index (RI) and temperature. The sensor is simple to fabricate and offers compact size, high sensitivity, low cost, and good stability.
A novel optical fiber sensor based on cascade anti-resonant reflection waveguide (ARRW) and fiber ring-shaped structure (FRSS) is proposed and experimentally demonstrated for simultaneous measurement of refractive index (RI) and temperature. The sensor is very simply fabricated by splicing ARRW and FRSS based on Mach-Zehnder interference (MZI). The FRSS interference dip is sensitive to external RI and temperature changes, whereas the ARRW structure's loss dip is only sensitive to external temperature. As a result, this sensor can be used to measure both RI and temperature simultaneously. The sensor's maximum RI sensitivity is 108.61 nm/RIU and its maximum temperature sensitivity is 19 pm/ degrees C in the experiment. This sensor is a good choice when it is necessary to measure RI and temperature at the same time due to its compact size, high sensitivity, low cost, and good stability.
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