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All Journal International Journal of Electrical and Computer Engineering
Siti Noor Maslizan Sudin
Universiti Teknologi MARA (UiTM)
Computer Science & IT Electrical & Electronics Engineering

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Design of fiber bragg grating (FBG) temperature sensor based on optical frequency domain reflectometer (OFDR) Nani Fadzlina Naim; Siti Noor Maslizan Sudin; Suzi Seroja Sarnin; Norsuzila Ya'acob; Latifah Sarah Supian
International Journal of Electrical and Computer Engineering (IJECE) Vol 10, No 3: June 2020
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (860.678 KB) | DOI: 10.11591/ijece.v10i3.pp3158-3165

Abstract

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.
Co-Authors Latifah Sarah Supian Nani Fadzlina Naim Norsuzila Ya'acob Suzi Seroja Sarnin