A powerful design interface  

The modular nature of the method employed is fully exploited by FIMMPROP in its flexible, modular design paradigm purposely made to take advantage of any symmetries or repetitions in the components you create. 

In addition, FIMMPROP also allows you to insert to arbitrary depth any component you design into another component. This not only allows you to build complex structures easily, but it also enables FIMMPROP to fully exploit the symmetries and repetitions inherent in your structure, saving you computation time. 

The program will soon have a comprehensive mask layout designer for specifying complex structures that can be made with simple lithographic steps.

General
What is FIMMPROP?
Calculation method
Component library
A powerful design interface
Scanning tools...
Graphical tools
Feature/options table

A few examples...
 Design an MMI...
 Optimize a bend..
 Y junctions and tapers...
 Photonic crystals...
Platforms
Customer support