Modelling and Simulation of Fiber Bragg Grating Characterization for Oil and Gas Sensing Applications

In this paper, modelling, simulation and characterization of optical fibre Bragg grating (FBG) for maximum reflectivity for oil and gas sensing applications are presented. The fibre grating length and the refractive index profile are key parameters for effective and high performance optical Bragg grating. The spectral reflectivity, bandwidth and side lobes were analysed with changes in grating length and refractive index. Modelling and simulation of the Bragg grating which are based on solving the Coupled Mode Theory (CMT) equation by using the transfer matrix method were carried out using MATLAB and the results show that the changes in grating length and refractive index profile affect the bandwidth as the demand for bandwidth and high-speed transmission grows in oil and gas sensing applications.

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