Fully vectorial solution of (near) arbitrary 2D waveguides

Friendly interface for designing rectangular, circular waveguides

Variety of fast, robust Solver Engines optimized for both rectangular geometries and fibers

Complex Engines for waveguides of complex refractive index, including metals

Substantially faster than finite element and finite difference routines 

Very accurate solutions even for "difficult" problems such as devices with very thin layers, weakly coupled structures, and devices near cut-off 

Parameter scanners for rapid design