A Study on Optimization of Waveguide Dispersion Property Using Function Expansion Based Topology Optimization Method
A Study on Optimization of Waveguide Dispersion Property Using Function Expansion Based Topology Optimization Method
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DOI：
10.1587/transele.e97.c.670
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发表时间：
2014-07
期刊：
影响因子：
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通讯作者：
H. Goto;Yasuhide Tsuji;T. Yasui;K. Hirayama
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文献类型：
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作者：
H. Goto;Yasuhide Tsuji;T. Yasui;K. Hirayama
本文将基于函数展开的拓扑优化方法应用于波导色散特性的自动优化，实现了低色散慢光光子晶体波导的优化设计。为了实现低色散和大组指数，要被优化的目标函数由用于期望的组指数和低色散特性的目标函数的加权和来表示，并且通过优化处理来更新加权系数。关键词：函数展开法，拓扑优化，光子晶体波导，慢光，结构滤波器
In this paper, the function expansion based topology optimization is employed to the automatic optimization of the waveguide dispersion property, and the optimum design of low-dispersion slow-light photonic crystal waveguides is demonstrated. In order to realize low-dispersion and large group index, an objective function to be optimized is expressed by the weighted sum of the objective functions for the desired group index and the low-dispersion property, and weighting coefficients are updated through the optimization process. key words: function expansion method, topology optimization, photonic crystal waveguide, slow-light, structural filter