Blind zone-suppressed hybrid beam steering for solid-state Lidar

Chao Li; Xianyi Cao; Kan Wu; Gaofeng Qiu; Minglu Cai; Guangjin Zhang; Xinwan Li; Jianping Chen

doi:10.1364/PRJ.424393

Journals >Photonics Research >Volume 9 >Issue 9 >Page 1871 > Article

Photonics Research
Vol. 9, Issue 9, 1871 (2021)

Blind zone-suppressed hybrid beam steering for solid-state Lidar

Chao Li, Xianyi Cao, Kan Wu^*, Gaofeng Qiu, Minglu Cai, Guangjin Zhang, Xinwan Li, and Jianping Chen

Author Affiliations

State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200240, China

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DOI: 10.1364/PRJ.424393 Cite this Article Set citation alerts

Chao Li, Xianyi Cao, Kan Wu, Gaofeng Qiu, Minglu Cai, Guangjin Zhang, Xinwan Li, Jianping Chen. Blind zone-suppressed hybrid beam steering for solid-state Lidar[J]. Photonics Research, 2021, 9(9): 1871 Copy Citation Text

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Abstract

We demonstrate a blind zone-suppressed and flash-emitting solid-state Lidar based on lens-assisted beam-steering technology. As a proof-of-concept demonstration, with the design of a subwavelength-gap 1D long-emitter array and multiwavelength flash beam emitting, the device was measured to have 5% blind zone suppression, 0.06°/point-deflection step, and 4.2 μs scanning speed. In time-of-flight ranging experiments, Lidar systems have a field of view of

11.3 ° \times 8.1 °

(normal device) or

0.9 ° \times 8.1 °

(blind-zone suppressed device), far-field number of resolved points of 192, and a detection distance of 10 m. This work demonstrates the possibility that a new integrated beam-steering technology can be implemented in a Lidar without sacrificing other performance.