Design of fiber bragg grating (FBG) temperature sensor based on optical frequency domain reflectometer (OFDR)

Design of fiber bragg grating (FBG) temperature sensor based on optical frequency domain reflectometer (OFDR)

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 tw...

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Veröffentlicht in:International journal of electrical and computer engineering (Malacca, Malacca) Malacca), 2020-06, Vol.10 (3), p.3158
Hauptverfasser: Naim, Nani Fadzlina, Sudin, Siti Noor Maslizan, Sarnin, Suzi Seroja, Ya'acob, Norsuzila, Supian, Latifah Sarah
Format: Artikel
Sprache:eng
Schlagworte:
Beat frequencies
Bragg gratings
Continuous radiation
Frequency analysis
Frequency domain analysis
Optical frequency
Radio frequency
Reflectometers
Sensors
Temperature
Temperature sensors
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Beschreibung
Zusammenfassung: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.
ISSN:2088-8708
2088-8708
DOI:10.11591/ijece.v10i3.pp3158-3165