High-Efficiency Apodized Si-SiN Dual-Layer Waveguide Grating Antenna

We demonstrate an apodized half-millimeter-long Si-SiN dual-layer waveguide grating antenna with a Gaussian-profile diffraction efficiency of 76%, substantially exceeding its uniform counterpart. This improvement is achieved without compromising resolution, making the device well-suited for high-resolution optical phased arrays.

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Publication Details

Published
2025-04-14
DOI
https://doi.org/10.1109/siphotonics64386.2025.10984563
Primary Topic
Photonic and Optical Devices
Type
article
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article

High-Efficiency Apodized Si-SiN Dual-Layer Waveguide Grating Antenna

Shi Wei, Pascal Audet
Photonic and Optical Devices
article

High-Efficiency Apodized Si-SiN Dual-Layer Waveguide Grating Antenna

Shi Wei, Pascal Audet
article en

Abstract

We demonstrate an apodized half-millimeter-long Si-SiN dual-layer waveguide grating antenna with a Gaussian-profile diffraction efficiency of 76%, substantially exceeding its uniform counterpart. This improvement is achieved without compromising resolution, making the device well-suited for high-resolution optical phased arrays.

Affordable and clean energy
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Photonic and Optical Devices
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High-Efficiency Apodized Si-SiN Dual-Layer Waveguide Grating Antenna — Shi Wei, Pascal Audet · (2025) | TGRS Research Map | TGRS