A mid-infrared focusing grating coupler with a single circular arc element based on germanium on silicon

A mid-infrared (MIR) focusing grating coupler (FGC) with a single circular arc element (CAE) in the front of the gratings based on a germanium-on-silicon (Ge-on-Si) platform is designed and demonstrated. It can be used equivalently to a traditional FGC with all-focusing gratings. By optimizing the s...

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Bibliographic Details
Main Authors: Xiaojun Zhu, Shuai Li, Ang Sun, Yongquan Pan, Wen Liu, Yue Wu, Guoan Zhang, Yuechun Shi
Format: Article
Language:English
Published: Beilstein-Institut 2023-04-01
Series:Beilstein Journal of Nanotechnology
Subjects:
Online Access:https://doi.org/10.3762/bjnano.14.38