Thermal Characteristics of Temperature Sensor Using Fiber Bragg Grating for Optical Sensor Network Communication

Abstract

In this paper, we present thermal characteristics of temperature sensor using fiber Bragg grating(FBG), including peak reflectivity, FWHM bandwidth and various normalized refractive index change along temperature variation. The temperature stability of FBG temperature sensor can be changed by varying the refractive index change and grating length. The proposed FBG temperature sensor can measure up to about 600℃ and heating time from 1000 hours. We can easily expect that various numerical results can be utilized as important ones when a sensor for measuring a temperature is implemented using a FBG technique.