Hi,
I tried to change the “simulation temperature” in the general tab of FDE or varFDTD (default value is 300K). I was expecting Neff of a silicon WG to change due to silicon’s thermo-opto effect. However, the simulation results do not appear to change al all with different temperature values. Is this how it should be?
Chuan
Dear @chuan.xie
The value for simulation temperature will be important if you use a perturbed index material. To add such a material, click on Add and then select index perturbation in Material Database:
In the simulation file attached, I have two silicon rectangles. These two rectangles have different materials, and index for rectangle 1 is a function of temperature. By setting different values for simulation temperature you can study how the index varies:
As you can see in the figure above, only rectangle 1 (the top rectangle) is affected by simulation temperature.
I hope this answered your question.
index_perturbed_test.lms (279.2 KB)
Thanks
