Fast-beam-switching optical phased array for moving objects in wireless optical communication networks

作者：Shichong Yang, Guihan Wu, Kaifei Tang, Fuhao Yu, Xiang Ji, Xin Yu, Wei Jiang · 发表于：Optics Letters · 年份：2024 · DOI：10.1364/ol.517454 · 被引用次数：16 · 研究领域：Photonic and Optical Devices、Advanced Photonic Communication Systems、Optical Wireless Communication Technologies

For optical wireless communication systems, mechanical beam steering struggles to timely switch between multiple users or search for moving users. Here we demonstrate a fast-beam-switching optical phased array (OPA) for agile wireless communication networks. For point-to-multi-point (P2MP) scenarios, a setup of OPA-based fast beam switching between two aligned receivers was developed. A loss-free image transmission experiment was used to demonstrate the stability of switching. Furthermore, we have developed an approach to using the fast-switching OPA to follow the trajectory of moving objects so as to help enable agile random-access switching between moving objects. These results could help offer fast switching and reconfiguration for indoor wireless optical communications.