文章基本信息

标题：Design of fiber bragg grating (FBG) temperature sensor based on optical frequency domain reflectometer (OFDR)
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作者：Nani Fadzlina Naim ; Siti Noor Maslizan Sudin ; Suzi Seroja Sarnin 等
期刊名称：International Journal of Electrical and Computer Engineering
电子版ISSN：2088-8708
出版年度：2020
卷号：10
期号：3
页码：3158-3165
DOI：10.11591/ijece.v10i3.pp3158-3165
出版社：Institute of Advanced Engineering and Science (IAES)
摘要：In this paper, the simulation of Fiber Bragg Grating (FBG) as a temperature sensor is conducted. The FBG temperature sensor is designed based on Optical Frequency Domain Reflectometer (OFDR) concept. A continuous wave (CW) laser is used as the optical source and it is transmitted to two FBGs. The two FBGs reflection spectra will produce a beat frequency that can be detected using a Radio Frequency (RF) Spectrum Analyzer. Any temperature change will shift Bragg wavelength, thus produce a shift for the beat frequency. In this work, an FBG with temperature sensitivity 10 pm/˚C is employed. It is found that by using this technique, a high-resolution temperature sensor can be designed with temperature resolution of 0.1˚C.
关键词：Temperator sensor;Fiber bragg grating (FBG);Optical frequency domain reflectometer (OFDR);RF spectrum analyzer