This article review highlights recent advancements and future directions in optical phased arrays (OPAs) for automotive LiDAR systems. Hsu et al. (2021) detail how OPAs are revolutionizing LiDAR by enabling highly accurate distance measurements and a wider field of view in autonomous vehicles. Emphasizing the integration of MEMS technology and silicon photonics, the article outlines performance improvements, such as enhanced scanning speeds and resolution. It further discusses the challenges faced, including miniaturization and cost reduction, and provides insights on potential applications beyond automotive, such as robotics and security. The outlook suggests a positive trajectory towards more efficient and versatile LiDAR systems driven by continued innovation in optical technologies.
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