Analysis of Ridge and Buried Optical Waveguide Using FDTD Method for Backbone Optical Communication

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Optical waveguide is the fundamental element that interconnects the various devices of an optical integrated circuit. In this paper, the propagation characteristics of ridge and buried waveguides have been investigated on light intensity distribution within the structure. The analysis has been done by varying the thickness and also the width of both ridge and buried optical waveguide. The normalized propagation constant and effective refractive index conditions have been simulated in order to find the most suitable optical waveguide for backbone optical communication. The analysis and results are analyzed using numerical method based on finite difference method approach.