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Noise Resistant Voxel scanning LiDAR

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posted on 2024-08-01, 07:24 authored by Malvika Garikapati, Yuping Huang, Yong Meng Sua, Jeevanandha Ramanathan
We demonstrate an upconversion imaging technique that transduces near infrared signals to visible for photon counting with low loss and high efficiency. By using far-detuned, 10-ns pump pulses for upconversion, fast voxel scanning is achieved with sub-centimeter ranging resolution over a designated spatial interval of 1.5~meters that is defined and fast shifted by an electronic delay line. Aided by superior noise suppression, 50×50×1000 voxels can be measured at a remarkable speed of 10 frames per second, making it suitable for fast LiDAR applications in high noise and photon-starved environments, including those for autonomous navigation and aerospace missions.

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116632

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