Design of fiber bragg grating (FBG) temperature sensor based on optical frequency domain reflectometer (OFDR)
| Main Authors: | Nani Fadzlina Naim, Siti Noor Maslizan Sudin, Suzi Seroja Sarnin, Norsuzila Ya'acob, Latifah Sarah Supian |
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| Format: | Article |
| Terbitan: |
, 2020
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| Subjects: | |
| Online Access: |
https://zenodo.org/record/4137332 |
Daftar Isi:
- 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.