High-efficiency silicon nitride grating coupler for perfectly vertical coupling

Jinghao Wang; Zhen Wang; Chen Hu; Huan Zhang; Kun Yin; Haitao Wang

doi:10.1117/12.2689122

28 November 2023 High-efficiency silicon nitride grating coupler for perfectly vertical coupling

Jinghao Wang, Zhen Wang, Chen Hu, Huan Zhang, Kun Yin, Haitao Wang

Proceedings Volume 12764, Optoelectronic Devices and Integration XII; 127641C (2023) https://doi.org/10.1117/12.2689122
Event: SPIE/COS Photonics Asia, 2023, Beijing, China

Conference Poster

Abstract

We demonstrate a high-efficiency silicon nitride grating coupler for perfectly vertical coupling. The directionality of the diffraction process is improved with the help of the bottom mirror and Bragg reflectors introduced in the design, leading to the minimal coupling loss of -0.52 dB at 1315.6 nm.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Jinghao Wang, Zhen Wang, Chen Hu, Huan Zhang, Kun Yin, and Haitao Wang "High-efficiency silicon nitride grating coupler for perfectly vertical coupling", Proc. SPIE 12764, Optoelectronic Devices and Integration XII, 127641C (28 November 2023); https://doi.org/10.1117/12.2689122

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