Open AccessInvestigation and demonstration of a high-power handling and large-range steering optical phased array chip
Author(s) -
Lanxuan Zhang,
Yingzhi Li,
Yu Hou,
Yubing Wang,
Min Tao,
Bo-Song Chen,
Quanxin Na,
Yuxuan Li,
Zihao Zhi,
Xiaobin Liu,
Xueyan Li,
Fengli Gao,
Xianshu Luo,
GuoQiang Lo,
Jun-Feng Song
Publication year - 2021
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.434067
Subject(s) - optics , chip , beam steering , materials science , photonics , phased array optics , phased array , power (physics) , silicon photonics , beam (structure) , optical power , optoelectronics , physics , computer science , telecommunications , laser , quantum mechanics , antenna (radio)
The optical power handling of an OPA scanning beam determines its targeted detection distance. So far, a limited number of investigations have been conducted on the restriction of the beam power. To the best of our knowledge, we for the first time in this paper explore the ability of the silicon photonics based OPA circuit for the high power application. A 64-channel SiN-Si based one-dimensional (1D) OPA chip has been designed to handle high beam power to achieve large scanning range. The chip was fabricated on the standard silicon photonics platform. The main lobe power of our chip can reach 720 mW and its peak side-lobe level (PSLL) is -10.33 dB. We obtain a wide scanning range of 110° in the horizontal direction at 1550 nm wavelength, with a compressed longitudinal divergence angle of each scanning beam of 0.02°.