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Ansys Learning Forum › Forums › Discuss Simulation › Photonics › Far-field planar mode projection › Reply To: Far-field planar mode projection

May 2, 2024 at 6:54 pm
Guilin Sun
Ansys Employee

If you want to use optimization, you will need to get the overlap calculated in an analysis group, and  output the overlap. In optimization you can choose the output as FOM.

Set up the monitors in one analysis group. However if it is from two different simulation files, you can save the mode data into ldf file or matlab file, and load it into the analysis group, then calculate the overlap with scripting. This is more flexible.

Please refer to the overlap calculation: https://optics.ansys.com/hc/en-us/articles/360034405254-overlap-Script-command to get the formula. In such case the output is only the ovderlap, not the power coupling.

Ideal method is to do two simulations if the gap is large with the farfield projection as the import source. If the gap is small you can place the two waveguides into one simulation file.

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