Two-dimensional beam steering based on dispersive optical phased array

Zhaoyang Zhang; Tingge Dai; Qiang Zhang; Qikai Huang; Hui Yu; Yuehai Wang; Jianyi Yang

doi:10.1117/12.2645523

23 January 2023 Two-dimensional beam steering based on dispersive optical phased array

Zhaoyang Zhang, Tingge Dai, Qiang Zhang, Qikai Huang, Hui Yu, Yuehai Wang, Jianyi Yang

Proceedings Volume 12556, AOPC 2022: Optoelectronics and Nanophotonics; 125560J (2023) https://doi.org/10.1117/12.2645523
Event: Applied Optics and Photonics China 2022 (AOPC2022), 2022, Beijing, China

Abstract

We demonstrate 32-channel dispersive optical phased arrays on a Si₃N₄-on-SOI integration platform. The phase difference is introduced by the arrayed waveguide. Beam steering in phased-array direction with an aliasing-free range of 22.4° and free spectrum ranges of ∼ 60 nm and ∼ 6 nm is achieved. Meanwhile, the main lobe is deflected simultaneously by 19.67° in the other direction by tuning the wavelength from 1500 nm to 1630 nm. Measurement results show that the dispersive optical phased array provides a compact, low-power and massively parallel solution for LiDAR applications.

Citation Download Citation

Zhaoyang Zhang, Tingge Dai, Qiang Zhang, Qikai Huang, Hui Yu, Yuehai Wang, and Jianyi Yang "Two-dimensional beam steering based on dispersive optical phased array", Proc. SPIE 12556, AOPC 2022: Optoelectronics and Nanophotonics, 125560J (23 January 2023); https://doi.org/10.1117/12.2645523

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