Streak tube imaging lidar with kilohertz laser pulses and few-photons detection capability

• DOI: 10.1364/oe.520620
• Publication Date: 2024-04-15T11:00:06Z
• Authors: Mengyan Fang; Kai Qiao; Fei Yin; Yanhua Xue; Yu Chang; Chang Su; Zhengzheng Wang; Jinshou Tian; Xing Wang
• Keywords: Streak; Streak camera; Ranging; SIGNAL (programming language)

Lidar using active light illumination is capable of capturing depth and reflectivity information target scenes. Among various technologies, streak tube imaging lidar (STIL) has garnered significant attention due to its high resolution excellent precision. The echo signals a STIL system single laser pulse are often overwhelmed by noise in complex environments, making it difficult discern the range target. By combining high-frequency pulses with repetitive sweep circuit, enables efficient detection few-photons signal weak-light environments. Additionally, we have developed robust algorithm for estimating images targets. results demonstrate that this achieves better than 0.5 mm ranging accuracy 95 um. Furthermore, natural scenes also validates exceptional 3D capability system.