Affiliation:
1. University of Science and Technology
2. Optics Valley Laboratory
3. China University of Geosciences
4. Hubei Key Laboratory of Advanced Control and Intelligent Automation for Complex Systems
Abstract
Optical phased array (OPA) is a promising beam steering component for light detection and ranging (LiDAR) systems. For most LiDAR applications, two-dimensional (2D, lateral and longitudinal) beam steering with large field of view is required. To achieve large lateral and longitudinal field of view, waveguide with nonuniform spacing and broadband tunable laser source is commonly utilized, resulting in complex structure and high cost. Here, a 2D OPA with large field of view is proposed and demonstrated on the silicon-on-insulator platform. Assisted by an improved optical antenna and polarization switch, lateral and longitudinal steering range could be both significantly improved. The experimental results show the steering ranges are 99.24° × 15.62° and 96.48° × 16.08° for transverse electric mode and transverse magnetic mode, respectively. The proposed scheme provides a promising approach to realize the integrated OPA with large field of view.
Funder
National Natural Science Foundation of China
Key Research and Development Program of Hubei Province
Program for HUST Academic Frontier Youth Team
Innovation Project of Optics Valley Laboratory
Subject
Atomic and Molecular Physics, and Optics
Cited by
2 articles.
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