Design of a multiple fiber Bragg sensor define of temperature parameters of the fiber Bragg gratings

摘要

In this study, sensor array is designed with 4 piece of FBGs to measure temperatures using the broadband laser source. These FBGs are put into thermal medium and temperature is changed between 30 °C-100 °C with 5 °C steps. The changes of optic signals are examined at the optical spectrum analyzer for each 5°C raise. The wavelength shifts of reflected lights for each FBGs are measured and temperature parameters of FBGs are obtained for the real time fiber optical sensor applications.