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    We demonstrated solid-state Light Detection and Ranging (Lidar) using integrated 2D lens assisted beam-steering (LABS) technology. This approach offers low power consumption and paves the way for fully integrated Lidar systems.

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    Area of Science:

    • Photonics and Optical Engineering
    • Solid-State Physics
    • Robotics and Autonomous Systems

    Background:

    • Traditional Lidar systems often face challenges with bulkiness, high power consumption, and complex control.
    • Integrated photonics offers a pathway to miniaturized and efficient optical systems.
    • Beam-steering is crucial for Lidar functionality, enabling scanning and object detection.

    Purpose of the Study:

    • To demonstrate a novel solid-state Lidar system operating at 1550 nm.
    • To showcase the application of integrated two-dimensional (2D) lens assisted beam-steering (LABS) technology in Lidar.
    • To evaluate the performance of the LABS-based Lidar in terms of scanning angles, ranging distance, and accuracy.

    Main Methods:

    • Development and integration of a 2D LABS chip capable of transmitting and receiving light.
    • Implementation of a time-of-flight coaxial Lidar architecture utilizing the LABS technology.
    • Digital signal input for beam-steering control with low power consumption (O(logN) for N antennas).

    Main Results:

    • Successful demonstration of a solid-state Lidar system with 16 scanning angles.
    • Achieved a maximum ranging distance of 19.5 meters.
    • Obtained a precise ranging error of 3 centimeters.

    Conclusions:

    • The integrated 2D LABS technology is a viable and effective solution for solid-state Lidar.
    • This technology significantly reduces power consumption and control complexity compared to conventional methods.
    • The findings pave the way for the development of fully integrated, compact, and efficient Lidar systems for various applications.