Waveguide grating couplers with bandwidth beyond 200 nm

We propose and validate a new approach for wideband waveguide grating couplers (GC). The wideband operation is achieved using a slot waveguide grating structure above the conventional channel waveguide. With this slot waveguide grating structure, both the grating strength, mode effective index and d...

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Bibliographic Details
Main Authors: Zhou Xuetong, Xue Ying, Feng Hanke, He Jianfeng, Sun Xiankai, Wang Cheng, Lau Kei May, Tsang Hon Ki
Format: Article
Language:English
Published: De Gruyter 2025-03-01
Series:Nanophotonics
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Online Access:https://doi.org/10.1515/nanoph-2024-0683
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