Numerical Modeling of an Optical Beam-Splitter by the Time-Domain Wavelet-Collocation Technique

摘要

Biorthogonal interpolating functions have been applied to electromagnetic field modeling through the wavelet-collocation technique in time domain, yielding a versatile first-principle algorithm for the solution of time dependent Maxwell's equations with inhomogeneous media. The resulting technique is rigorous and maintains high accuracy, while, by virtue of its sub-gridding capability, significant reduction of the computational requirement has been obtained particularly for the modeling of electrically large dielectric waveguides. The proposed technique has been applied to a two dimensional dielectric waveguide beam splitter, and improvement in the computational efficiency has been demonstrated.