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Pseudospectral Modal Method for Computing Optical Waveguide Modes
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DOI：10.1109/JLT.2014.2309144.png)
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Abstract
En 中文
For optical waveguides with high index-contrast and sharp corners, it is challenging to develop efficient, accurate and general full-vectorial mode solvers. The classical mode-matching method is capable of computing modes to high accuracy for waveguides with right-angle corners, but it is not convenient to implement when the waveguide has lossy components. Numerical variants of the mode-matching method, such as the Fourier modal method (as a mode solver), are simpler to implement. In this paper, a recently developed pseudospectral modal method for diffraction gratings is reformulated as a full-vectorial waveguide mode solver. As demonstrated in a number of examples, the method can be used to calculate waveguide modes to high accuracy, and it is relatively simple to implement.
Keywords:
Modal analysis
mode matching methods
numerical methods
optical waveguides
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4.8
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1.7W
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3.8W
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Reformulation of the Fourier modal method with adaptive spatial resolution: application to multilevel profiles.png)
OPTICS EXPRESS
OAAI
OPTICS EXPRESSIF3.3
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