Características de Propagação e Polarização de Guias de Ondas Segmentados

Abstract

This dissertation examined periodically segmented waveguides, with segmented guides defined as those with non-trivial geometries in which propagation mechanisms are not evident, exploring the behavior of their propagation modes and polarization through numerical simulations using the 2D Finite Element Method. The formulation for waveguide mode analysis was employed, enabling the investigation of the impact of variations in the core geometry (radius, width, gap, and core period) on its guiding properties for TE and TM modes. The performance of materials (silica, silicon carbide, and silicon nitride) composing the waveguide was explored in the dispersion relation, aiming to analyze how material properties, such as refractive index, influence the propagation characteristics of modes within the waveguide.