Design and Study of Chirped Fiber Bragg Grating for Sensing of Hazardous Gases

Abstract

This paper deal with the application of Chirped Fiber Bragg Grating in sensing of hazardous gases. By developing a mathematical model for the CFBG showing the effect of temperature on parameters of grating. Due to immunity of electrical magnetic interference, high sensitivity, compactness and simple to fabrication we preferred CFBG for sensing purpose. By measuring the reflected spectrum and fitting with mathematical model based on Transfer Matrix Method, the effect of temperature on CFBG have been studied. Simulation results are taken for change in spectrum due to rises in temperature due to reaction of hazardous gases with coated chemical.