Inverse design of waveguide crossing

Using parametric optimization (PO), and python interoperability design a silicon-on-insulator waveguide crossing in varFDTD 2.5D and 3D FDTD to rapidly converge on a solution.  This optimization algorithm is based on the adjoint method, and yields optimal solution in just a few iterations compared to other schemes such as particle swarm Więcej…

Inverse design of y-branch

Use the built-in parametric optimization (PO) method for inverse design of a silicon-on-insulator Y-branch to achieve the maximum broadband transmission. The varFDTD 2.5D solver now supports this technique allowing for realistic material models and monolithic planar devices. The adjoint method is the basis for the efficient optimization algorithm which significantly Więcej…

Inverse design of grating coupler

Inversely design a silicon-on-insulator grating coupler using the built-in parametrized geometry optimization module (PO) for FDTD. Compared to other optimization methods such as particle swarm optimization (PSO), this optimization algorithm enables obtaining the best solution in just a few iterations. In this example, the etch depth will be fixed at Więcej…