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We demonstrated a real-time lidar system applying a Digital Micromirror Device (DMD) as a field of view (FOV) expander of a lidar receiver employing a 2D Multi-Pixel Photon Counter (MPPC). By temporally synchronizing the transitional state of micromirrors with returning photons from lidar, receiver FOV is diffractively steered to the targets’ direction enabled by nano-second pulse laser. With a nanosecond 905nm laser transmitter, time-of-flight (ToF) lidar images were captured across seven diffraction orders with the expanded 35 degrees full field of view lidar scanning range.
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Jeff Chan, Chin-I Tang, Xianyue Deng, Ted Lee, Yuzuru Takashima, "Wide field of view real-time flash DMD-lidar with 2D multi-pixel photon counter," Proc. SPIE 12435, Emerging Digital Micromirror Device Based Systems and Applications XV, 124350D (15 March 2023); https://doi.org/10.1117/12.2647989