期刊
IEEE SENSORS JOURNAL
卷 14, 期 1, 页码 167-170出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JSEN.2013.2279537
关键词
Mach-Zehnder interferometer; photonic crystal fiber; temperature sensor
资金
- National Science Foundation of China [61308046, 61275125]
- Doctoral Fund of the Ministry of Education of China [20114408120002]
- Basic Research program of Shenzhen
We propose a compact and ultrasensitive all-fiber temperature sensor based on an in-line fully liquid-filled photonic crystal fiber (PCF) Mach-Zehnder interferometer (MZI). It consists of a small piece of index-guiding PCF fully infiltrated by fluid and two standard single-mode fibers offset spliced with PCF. Two core modes LP01 and LP11 are conveniently used as optical arms to form the in-line MZI-type interferometer. Experimental and theoretical investigations of its response to temperature confirm that high temperature sensitivity up to -1.83 nm/degrees C could be realized with such a compact interferometeric PCF temperature sensor.
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