A flexible on-chip phase calibration method for optical phased array

Zhiyan Zhou; Zhaoyang Zhang; Hui Yu; Tingge Dai; Jianyi Yang

doi:10.1117/12.2651795

23 January 2023 A flexible on-chip phase calibration method for optical phased array

Zhiyan Zhou, Zhaoyang Zhang, Hui Yu, Tingge Dai, Jianyi Yang

Proceedings Volume 12556, AOPC 2022: Optoelectronics and Nanophotonics; 1255615 (2023) https://doi.org/10.1117/12.2651795
Event: Applied Optics and Photonics China 2022 (AOPC2022), 2022, Beijing, China

Abstract

We demonstrate a 32-element silicon OPA chip with on-chip phase calibration. The on-chip phase calibration structure consists of interferometric structures and germanium silicon photodetectors (GeSi PDs). This structure can control any angle deflection within the scanning range without detecting the far-field patterns. In the horizontal direction, the on-chip phase calibration structure is used to achieve beam steering within the 36° scanning range, and the side-lobe suppression ratio can be close to 7dB.

Citation Download Citation

Zhiyan Zhou, Zhaoyang Zhang, Hui Yu, Tingge Dai, and Jianyi Yang "A flexible on-chip phase calibration method for optical phased array", Proc. SPIE 12556, AOPC 2022: Optoelectronics and Nanophotonics, 1255615 (23 January 2023); https://doi.org/10.1117/12.2651795

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