Graphics Processor Unit Accelerated Design of Multimode Interference Reflectors

A modified three-part algorithm based on extracting effective scattering matrix parameters is presented for the design of multimode interference reflectors. In contrast to previous work, each stage of the suggested simulation strategy is completed in the frequency domain. We demonstrate that this new approach is able to calculate the reflectivity of a multimode interference reflector across a 2D parameter space 7.2 times faster than a standard GPU accelerated three-part simulation and over 68 times faster than a typical CPU implementation.