Novel Scattering Operator for Arbitrary Finite Element Models in Optical Waveguides

Filling Arbitrary Holes in Finite Element Models

We present a new approach for filling arbitrary holes in Finite Element (FE) models composed of independent meshes which are commonly used in Computer Aided Engineering (CAE). During the preprocessing of an FE model for fluid structure simulation a closed structure hull is required in order to subsequently generate a volume mesh representing the fluid. Today’s complex CAE models include thousan...

Finite Element Analysis of Open - type Dielectric / Optical Waveguides

Optical fibers or integrated optical waveguides have arbitrary cross-sectional index or refraction distribution. An efficient finite element method for analyzing the propagation characteristics of dielectric / optical waveguides with open boundary is presented. The propagation modes are hybrid, for which a variational expression is formulated in terms of the longitudinal electric and magnetic f...

Finite element optical modeling of liquid crystal waveguides

Development of a Finite Element Method Mode Solver Application for Optical Waveguides

Finite Element Method constitutes one of the most powerful numerical methods when there is need for approximate solutions of a problem. In this work an application with a user-friendly graphical interface, developed in Matlab, is presented which facilitates the calculation and graphical presentation of the propagation constants and modes of various types of optical waveguides using FEM. To chec...

Finite element methods for acoustic scattering

In these lecture notes we introduce the finite element method and describe how it can be used to approximate the solution to certain problems of acoustic scattering. We also highlight some of the difficulties involved, and briefly summarise some current research aimed at resolving these issues.