A boundary variation method for the fast and accurate modeling of three-dimensional waveguide grating couplers is presented. The algorithm is verified by detailed comparisons with the results of a rigorous spectral collocation method, showing excellent agreement. Examples of the modeling of large waveguide grating couplers are given to illustrate the applicability and versatility of the method.
© 2001 Optical Society of America
P. G. Dinesen and J. S. Hesthaven, "Fast and accurate modeling of waveguide grating couplers. II. Three-dimensional vectorial case," J. Opt. Soc. Am. A 18, 2876-2885 (2001)