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    Area of Science:

    • Optics and Photonics
    • Remote Sensing Technology
    • Laser Systems Engineering

    Background:

    • Photon-counting laser ranging is crucial for altimetry applications.
    • Developing advanced laser imaging systems is essential for high-resolution remote sensing.

    Purpose of the Study:

    • To report a novel large-scale multi-beam photon-counting laser imaging system.
    • To demonstrate its capability for rapid 3D image construction of remote targets.

    Main Methods:

    • Utilized a light source comprising 100 laser beams in a linear array.
    • Employed a 100-channel low-noise, high-efficiency single-photon detector.
    • Applied time-of-flight (TOF) measurements for 3D data acquisition.

    Main Results:

    • Successfully constructed three-dimensional images of remote targets.
    • Achieved rapid image construction due to the system's design.
    • Demonstrated the system's potential for high-speed, high-resolution performance.

    Conclusions:

    • The developed system offers a viable solution for advanced laser altimetry.
    • It enables high-speed, high-resolution, and low energy-consumption airborne or spaceborne laser altimeters.
    • This technology advances the field of photon-counting laser imaging for remote sensing.