I am new to Mode Solutions. I am trying to execute the “Evanescent waveguide coupler” for a fixed separation between the waveguides, without the script. These are the steps that I do:
- Calculate the mode of the first waveguide using FDE, and store the fundamental mode as a d-card.
- Introduce the 2nd waveguide and solve for the supermodes of the system.
3.HOW do I (now) launch the fundamental mode stored in the d-card (as a superposition of the supermodes) into the first waveguide and look at the propagation?
- I wish to simulate propagation in a fiber directional coupler. Can I use EME (varFDTD will not work for fibers) or do I have to use 3D FDTD?
Would sincerely appreciate some pointers.