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arXiv · 2107.09156

A 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
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Abstract

We demonstrate a blind zone-suppressed and flash-emitting solid-state Lidar based on lens-assisted beam steering (LABS) technology. As a proof-of-concept demonstration, with a design of subwavelength-gap one-dimensional (1D) long-emitter array and multi-wavelength flash beam emitting, the device was measured to have 5%-blind zone suppression, 0.06°/point-deflection step and 4.2 microsecond-scanning speed. In time-of-flight (TOF) ranging experiments, Lidar systems have field of view of 11.3°* 8.1° (normal device) or 0.9°*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.

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Chao Li, Xianyi Cao, Kan Wu, Gaofeng Qiu, Minglu Cai, Guangjin Zhang, Xinwan Li, Jianping Chen. 2021-06-23. A blind zone-suppressed hybrid beam steering for solid-state Lidar. https://arxiv.org/abs/2107.09156

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