Infrared and Laser Engineering, Volume. 52, Issue 3, 20220474(2023)
Research on linear array scanning lidar and photon signal processing technology based on InGaAs single-photon detector
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Fig. 4. Variation comparison of the PDE (a) and background noise count rate with light incidenting (b) versus DCR under different refrigeration temperatures
Fig. 5. (a), (b) Point cloud data recording 1 and 4 echoes; (c) Result processed by rough filtering algorithm after recording single echo
Fig. 7. (a) Filtered point cloud image; (b), (c) Point cloud images of a building with a distance of 3.3 km and building group with distance of 1.5-2.0 km respectively
Table 1. Key parameters of the lidar system
View tableView in ArticleTable 1. Key parameters of the lidar system
Devices Parameter Value Laser Wavelength 1550 nm Total energy 100 μJ Energy per beam 0.5 μJ Pulse width 1 ns Pulse frequency 20 kHz Beam splitting scale 128×1 Emission optics Divergence angle 0.15 mrad Maximum measured distance >3 km Included angle between beams 1.37 mrad Receiving optics FOV 10° IFOV 0.3 mrad Aperture 34 mm F# 4.9 SPAD Dark count 20 kHz Dead time 200 ns Detection efficiency 3%@1550 nm
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Xiaoyu Zhang, Fengxiang Wang, Ying Guo, Wenjuan Wang, Yongfeng Luo, Wen Wu, Jia Hou, Ziqing Jiang, Ziqiang Peng, Genghua Huang, Rong Shu. Research on linear array scanning lidar and photon signal processing technology based on InGaAs single-photon detector[J]. Infrared and Laser Engineering, 2023, 52(3): 20220474
Paper Information
Category: Lasers & Laser optics
Received: Jul. 8, 2022
Accepted: --
Published Online: Apr. 12, 2023
The Author Email: Huang Genghua (genghuah@mail.sitp.ac.cn)
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