Stable and efficient bloch-mode computational method for one-dimensional grating waveguides.
We present a stable and efficient method for the Bloch-mode computation of one-dimensional grating waveguides. The approach uses the Fourier modal method and the S-matrix algorithm to remove numerical instabilities. The use of perfectly matched layers provide a high accuracy. Numerical results obtained for different lamellar grating waveguides and for both TE and TM polarizations illustrate the performance of the approach.
Cao
Qing
Q
Laboratoire Charles Fabry de l'Institut d'Optique, Centre National de la Recherche Scientifique, Orsa, France.
Lalanne
Philippe
P
Hugonin
Jean-Paul
JP