Author:
Fu Tianyang,Yan Xin,Zhang Xia,Ren Xiaomin
Abstract
Non-uniformly distributed gratings on the silicon-on-insulator platform for one-dimensional beam steering are designed by direct binary search inverse-design method. The gratings exhibit good emission directionality and far-field characteristics. Within a relatively small wavelength tuning range of 1517-1577 nm, the longitudinal scanning angle for TE and TM light is 23.65° and 10.81°, respectively, both of which are much larger than their uniform counterparts. By polarization multiplexing and etching depth optimization, a remarkable longitudinal scanning angle of 32.10° and high beam steering efficiency of 0.55°/nm are obtained. This work may pave the way for the development of miniaturized optical phased arrays with excellent beam steering performance.
Funder
National Natural Science Foundation of China
State Key Laboratory of Information Photonics and Optical Communications
Subject
Atomic and Molecular Physics, and Optics
Cited by
1 articles.
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1. Inverse Designed Optical Phased Array Antenna Based on the Direct Binary Search Algorithm for Angle-Customized Beam Emission;2023 Asia Communications and Photonics Conference/2023 International Photonics and Optoelectronics Meetings (ACP/POEM);2023-11-04