Efficient Full-Vectorial Finite Element Analysis for Circularly Symmetric Waveguides
Efficient Full-Vectorial Finite Element Analysis for Circularly Symmetric Waveguides
复制标题
圆对称波导的高效全矢量有限元分析
DOI：
10.1109/jlt.2022.3160506
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发表时间：
2022
影响因子：
4.7
通讯作者：
Tsuji Yasuhide
中科院分区：
文献类型：
--
作者：
Morimoto Keita;Iguchi Akito;Tsuji Yasuhide
为了提高全矢量有限元法（FV-FEM）分析圆对称波导的效率，提出了一种结合传播算子技术的FV-FEM方法。我们在这里采用的圆柱坐标系需要更少的计算时间和资源的3-D分析的圆对称光子器件。一个边界条件，这是必要的终止计算域的FV-FEM修改，以允许建设的散射算子。它可以分析任意几何形状，包括结构不连续性沿着传播方向。我们表明，我们的方法可以大大提高分析效率的大规模波导散射算子的多级连接。
In this paper, in order to improve performance efficiency of a full-vectorial finite element method (FV-FEM) for analysis of circularly symmetric waveguides, a novel FV-FEM scheme combined with a propagation operator technique is proposed. A cylindrical coordinate system we employed here requires less computational time and resources for 3-D analysis of circularly symmetric photonic devices. A boundary condition which is necessary for terminating the computational domain of FV-FEM are modified to allow construction of scattering operators. It can analyze arbitrary geometries including structural dinscontinuities along the propagation direction. We show that our approach can greatly improve analysis efficiency of large-scale waveguides by multi-stage connection of the scattering operators.