Temperature Sensor Based on Er-Doped Cascaded-Peanut Taper Structure In-Line Interferometer in Fiber Ring Laser
نویسندگان
چکیده
A temperature sensor based on erbium-doped fiber cascaded peanut taper (EDFCPT) structure in ring laser (FRL) cavity is proposed and studied. The was fabricated by fiber. cladding mode core interference the strong thermo-optical effect of were used to realize high sensitivity measurement temperature. thermal effects EDFCPT a broadband super-continuous light source studied compared experimentally. Besides, Erbium-doped (EDFCP) designed compare performance with EDFCPT. experimental results show that has higher signal noise ratio (SNR) (~50dB) narrower 3-dB bandwidth (~0.12nm) than source. Among them, 571pm/°C which two times EDFCP (~249nm/°C) at range from 5°C-55°C. advantages sensitivity, good repeatability, simple fabrication, compact structure, etc. It application prospect field aerospace life health monitoring.
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ژورنال
عنوان ژورنال: IEEE Sensors Journal
سال: 2021
ISSN: ['1558-1748', '1530-437X']
DOI: https://doi.org/10.1109/jsen.2021.3105408