Reply To: Difference between answers in version 2024 and 2017 lumerical mode solution

[zahra mansouri]

 

Thank you, dear Guilin Sun, for your guidance.  

I use the FDE solution in Lumerical Mode Solution to simulate a cylindrical magneto-optic waveguide in order to obtain the mode profile. For the forward direction, I apply the magnetic bias in the y direction, which is perpendicular to the propagation direction, and for the backward direction, I use the magnetic bias in the -y direction. I define the magneto-optic material in both forward and backward directions using matrix transformation, as outlined in the Lumerical guidelines on the Ansys website.  

Now, when I simulate this structure in Lumerical Mode Solution 2017, the propagation characteristics, such as Neff, show a significant difference between the forward and backward directions, which is important for our goals. However, when I simulate this structure in both directions using Lumerical Mode Solution 2024, the difference between Neff in the forward and backward directions is very close to each other, resulting in a negligible difference that could change our design goals