Pade/spl acute/ boundary conditions for the finite-element modeling of arbitrary planar junctions
作者： C.E. Rubio-Mercedes , H.E. Hernandez-Figueroa
关键词: Finite difference 、 Mathematical analysis 、 Waveguide (optics) 、 Finite element method 、 Perfectly matched layer 、 Mathematics 、 Discontinuity (linguistics) 、 Frequency domain 、 Boundary value problem 、 Geometry 、 Planar
摘要: Novel boundary conditions based on Pade/spl acute/ approximations for the frequency domain two-dimensional/finite element (2-D/FE) simulation of planar optical junctions arbitrary geometry and number accessing waveguides are presented described in detail. This efficient formulation is straightforwardly implemented within 2-D/FE framework also can easily be used finite difference schemes. Three examples show applicability reliability present method: a waveguide step discontinuity, transverse displacement T-shaped beam splitter.
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