Abstract
The aim of the experiment is to design Bragg Grating Cavity design (to show Fabry Perot effects) for High Quality Factor. The basic Bragg Grating design used in this project consists of two identical Bragg Gratings and a cavity between the two Gratings. Bragg devices are first simulated using Transfer Matrix Model (TMM) on MATLAB. Parameters like Number of Grating Periods, Cavity Length and Type of Grating are varied to note the effect on Quality Factor. 7 Bragg devices are then designed using KLayout, visualized using Lumerical Interconnect and compared to Matlab TMM model. Simulated results are compared to Measured results using MATLAB and the differences between measurement data and simulated data are discussed. Out of the several implemented designs, the rectangular grating type design with Grating periods of 195, cavity length of 54.6μm and corrugation width 0.045μm resulted in the highest experimental Quality Factor.
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