拓扑多谐振腔级联耦合系统:时域耦合模式理论解析

Topological cascaded coupled cavities system: Neo-analysis of temporal coupled-mode theory

近年来,人们发现拓扑光子学可以保护多种光学器件的光学行为不受缺陷和其他微扰的影响.因此,拓扑光子学与滤波器设计的结合正被提上日程.最近的研究结合时域耦合模式理论,导出了四端子的多谐振腔级联耦合系统中的传输效率方程,并基于此设计了一种通用型高阶非互易性上/下载滤波器结构,获得了与理论预测相匹配的仿真结果.

In recent years, it has been discovered that topological photonics can ensure the robust optical behaviors of multiple optical devices, which eases the impact of defects and other perturbations on the device performance. Therefore, the combination of topological photonics and filter design is on demand. Recently, the transmission efficiency equation in a four-terminal cascaded coupled cavities system was derived based on the temporal coupled-mode theory. And general high-order nonreciprocals add/drop filter structure was designed. The simulation results are in good agreement with the theoretical prediction.