Enhanced Sensitivity of Temperature Sensor with Transmitted Light of Fiber Bragg Grating

Autor: Mohd Azwadi Omar, Nurul Atika Nabila Jaharudin, Nor Hafizah Ngajikin, Sadeq Thamer Sadeq Al-Musawi, Noran Azizan Cholan, R. Talib
Rok vydání: 2019
Předmět:
Zdroj: 2019 IEEE International Conference on Sensors and Nanotechnology.
DOI: 10.1109/sensorsnano44414.2019.8940095
Popis: An optical temperature sensor utilizing transmitted light of fiber Bragg grating (FBG) is experimentally demonstrated in this work. For performance comparison, sensitivity of FBG transmitted light is compared with that of FBG reflected light. The measured sensitivity of transmitted light is 15.3 pm/°C, which is higher than 14.8 pm/°C recorded for the reflected light. Such enhanced sensitivity is influenced by the 3-dB bandwidth of the light signal. It is demonstrated that the transmitted light has narrower bandwidth of 0.12 nm rather than 0.23 nm for the reflected light and this factor contributes to enhanced sensitivity for the transmitted light.
Databáze: OpenAIRE