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Automotive Light Detection and Ranging (LiDAR) modules, wearable augmented reality display engines, and field-deployable free-space optical communication systems all require fast and robust solid-state beam and image steering solutions with a wide 2-dimensional field of view, as mechanical laser beam scanning is prone to mechanical failure. Diffractive beam steering with a digital micromirror device provides a robust solid-state beam steering solution to these problems and has been show to increase the field of view in 1-dimension for LiDAR and display systems. By extension, two Digital Micromirror Devices arranged orthogonally can be synchronized with a pulsed laser to diffractively steer a beam arbitrarily in 2-dimensions. This technique enables all-solid-state 2-dimensional beam steering solutions for beam steering and image steering applications.
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(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.
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Gregory Nero, Jeff Ching-wen Chan, Xianyue Deng, Ted Liang-Tai Lee, Yexin Pei, Yuzuru Takashima, "Two-dimensional solid-state diffractive beam steering by digital micromirror devices," Proc. SPIE 12900, Emerging Digital Micromirror Device Based Systems and Applications XVI, 129000C (13 March 2024); https://doi.org/10.1117/12.3002351