FIMMPROP

Introduction

Features
‣ Design Interface
‣ Component Library
‣ Field/Mode Analysis
‣ Scanning Tools

Applications

Publications

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Field/Mode Analysis

Field plotting

FIMMPROP provides the user with flexible and exhaustive plotting tools allowing to plot any field section of the device. It is possible to plot any field component, the intensity of the field or the norm of the Poynting vector in any XY, XZ or YZ cross-section of the device and to export the associated data in a spreadsheet program. It is also possible to plot fields profiles averaged along one direction, and to select the field propagating forward or backward.

Different sections at different angles of the field intensity in an MMI Coupler.

Mode power and coupling analysis

The decomposition of the field in a set of eigenmodes reveals a lot about the physics of your device: coupling, mode conversion efficiency, radiation, leakage, etc.

FIMMPROP can plot the evolution of the power in each mode along the device, allowing you to follow the power in each mode of your waveguide and to study mode coupling for any kind of input. This is particularly useful to check whether your taper is adiabatic, to see where radiation losses occur, etc.

Error analysis

FIMMPROP allows you to find out how large an error you are making on the final results and where this error has built up in the device. This allows you to efficiently assess the accuracy of your simulation and to improve it efficiently by increasing accuracy where it is needed only, saving you calculation of time.