Abstract
In this paper, the effect of longitudinal strain and temperature on uniform Fiber Bragg Grating (FBG) is investigated using MATLAB. Measurement of strain or temperature in various applications is essential where mankind is restricted. Fiber optic technology gives a better result for the measurement of strain or temperature using FBG based sensors. The simulated results show that a 2.4 nm shift in Bragg wavelength for the applied 2000 microstrain, 1.65 nm shift in Bragg wavelength at 120 0C temperature. The detection sensitivity of the sensor is 1.2 pm/µe and 13.7 pm/0C. It also emphasizes that the combined effect of temperature and strain on FBGs, shifts the Bragg wavelength peak more in wavelengths. A 4 nm shift in Bragg wavelength is also observed for the combined effect of 2000 microstrain and temperature at 120 0C.
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