1995
DOI: 10.1109/50.372431
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Fourier decomposition method applied to mapped infinite domains: scalar analysis of dielectric waveguides down to modal cutoff

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Cited by 58 publications
(21 citation statements)
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“…This type of grid growth is particularly suitable for a modal analysis of an optical waveguide, because the region with a large field amplitude, which predominates the accuracy, is densely discretized, while the region with a small field amplitude is coarsely discretized. Equation (2) has been successfully used for the eigenmode analysis of optical waveguides [32], [33].…”
Section: A Computational Space Methods (Csm)mentioning
confidence: 99%
“…This type of grid growth is particularly suitable for a modal analysis of an optical waveguide, because the region with a large field amplitude, which predominates the accuracy, is densely discretized, while the region with a small field amplitude is coarsely discretized. Equation (2) has been successfully used for the eigenmode analysis of optical waveguides [32], [33].…”
Section: A Computational Space Methods (Csm)mentioning
confidence: 99%
“…We have not performed an extensive search for an optimum transform in terms of accuracy or convergence performance. Rather, our choice was motivated by its easy implementation with Fourier expansion techniques and has been inspired by an earlier work 17 on the use of Fourier series for calculating bounded modes of rectangular core waveguides under the scalar-wave approximation with real nonlinear transforms. The chosen coordinate transform X = F͑xЈ͒ is given in Appendix A.…”
Section: Implementation With Fourier-modal Expansion Techniquesmentioning
confidence: 99%
“…In addition, the present method can be directly applied to simulate this coupler without using effective index method [5]. In dealing with the boundary conditions, a tangent-type function [6], [7] is applied to map the infinite plane into a unit square. As a result, the artificial boundary conditions [8], [9] are eliminated.…”
Section: Introductionmentioning
confidence: 99%