Thermally tuned Waveguide tutorial trouble
Hello fellow lumerical users,
I am new to the software and was attempting to do the thermally tuned waveguide tutorial found here:
I was able to complete the tutorial succesfully but I am attempting to apply the logic found here to my own waveguide. I create the entire structure in HEAT, run a sweep, download the temperature grid, and upload that info to MODE to get this (Note: I only included the waveguide and a bit of the surrounding material in MODE which is why my temp grid structure is much longer):
However, once I begin running the script provided in the tutorial:
My temp grid shrinks back to the origin and I see this:
an I still get results for my sweeps but they are all zero. Why is this happening? Do I need to change something in the provided script? Also, where does the equation, Phase = 2*pi*(neff-neff0)*L/lambda come from? Does it have a name?
Hopefully someone can help me with this as lumerical seems to be an amazing program and I want to know how to apply it to the work at my job