: A wealth of community-contributed scripts, Python wrappers, and simulation templates can be found by searching for “Lumerical” on GitHub. These resources often complement official documentation with practical, real-world examples.
Before posting, use the search bar to see if your problem has already been solved. The forum contains years of history.
: Many academic users share simulation strategies and troubleshoot problems on ResearchGate. This can be a good avenue for highly specialized or theoretical questions.
Focused on waveguide eigenmodes, bent waveguide analysis, and propagation loss. Here, you will find deep discussions on calculating effective indices for SOI (silicon-on-insulator) rib waveguides and troubleshooting variational FDTD for long-range propagation.
: For enterprise customers needing guaranteed response times, direct support is available through the Lumerical Support Portal.
More specialized topics also find a home in the forum. A user trying to simulate Kerr nonlinearity in a ring resonator noted that they couldn’t observe any interaction until increasing χ₃ to an unphysical value of 1e-6. The thread highlighted subtle issues in scaling and material database configuration that can affect nonlinear simulations.
Users often encounter simulations where the fields grow infinitely, causing the simulation to shut down. Forum experts routinely guide users through fixing this by adjusting Perfectly Matched Layer (PML) boundary conditions, refining mesh sizes, or modifying material auto-fitting parameters.
(e.g., 2023 R2) OS: Windows/Linux
Defining custom materials and importing experimental data.
Troubleshooting common simulation errors like or mesh convergence issues.
# Open file for writing filename = "neff_vs_width.txt"; f = fopen(filename, "w");
