A Topological Photonic Ring-Resonator for On-Chip Channel Filters
A Topological Photonic Ring-Resonator for On-Chip Channel Filters
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用于片上通道滤波器的拓扑光子环谐振器
DOI：
10.1109/jlt.2021.3082558
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发表时间：
2021-08-01
影响因子：
4.7
通讯作者：
Zhao, Jianlin
中科院分区：
文献类型：
--
作者：
Gu, Linpeng;Yuan, Qingchen;Zhao, Jianlin
提出了一种在谷型光子晶体中形成的拓扑保护环形谐振腔，并在硅平板上进行了制作。说明了其谐振模式的单向传输特性和对结构缺陷的鲁棒性。与拓扑波导耦合，拓扑环起到陷波和通道压降滤波器的作用。该工作为开发具有拓扑光子学特性的先进芯片集成光子电路开辟了一条新的途径。
A topologically protected ring-resonator formed in valley photonic crystals is proposed and fabricated on a silicon slab. The unidirectional transmission and robustness against structure defects of its resonant modes are illustrated. Coupled with topological waveguides, the topological ring is functioned as notch and channel-drop filters. The work opens up a new avenue for developing advanced chip-integrated photonic circuits with attributes of topological photonics.