Ansys Lumerical FDE — Solver Region

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In this course, we will learn about the properties that are set in the Ansys Lumerical FDE solver region and mesh override regions. The FDE solver region is where the solver region geometry, mesh and boundary conditions can be set.

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In this course, we will demonstrate the workflow for setting up an Ansys Lumerical FDE simulation to find the supported modes of a waveguide and analyze the frequency response of the modes. We will learn what types of devices and applications can be simulated using the FDE solver, and the types of results that can be obtained using the analysis tools.

In this course, we will discuss the algorithm used to find the eigenmodes of a given structure and the properties of those modes in Ansys Lumerical FDE. We will also explain the overlap and power coupling calculations, the feature that tracks modes as a function of frequency, and how properties such as dispersion and group velocity are calculated. By the end of this course, you will be able to describe the algorithm used by the FDE solver, know when the FDE method can be applied, understand the difference between the overlap and power coupling quantities, and know how the overlap frequency sweep calculations are performed.

In this course, we will learn how to run the Ansys Lumerical FDE solver, use the built-in analysis options, get results using the scripting language, and export results. We will also discuss convergence testing for verifying result accuracy. By the end of this course, you will be able to understand the difference between layout and analysis modes, calculate modes of straight and bent waveguides using the FDE solver, know how to use the data analysis group, understand the difference between the integrated frequency sweep tool and the general parameter sweep tool, plot and export results, explain what convergence testing is and why it is necessary, and know where to find information about script commands used for FDE analysis.