| Citation: | LI Fu-hao, ZHAO Ji-guang, ZHANG Jian-wei, DUAN Yong-sheng, LIU Bing. Research status and application prospects of beam deflection using electro-optic materials towards space laser communication[J]. Chinese Optics. doi: 10.37188/CO.2025-0154
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Electro-optic beam deflection technology possesses advantages such as low power consumption, miniaturization, and good controllability. Compared with mechanical beam deflection, acousto-optic beam deflection, and liquid crystal beam deflection technologies, it is more easily able to meet the practical application requirements of rapidity and stability in space laser communication. This paper systematically summarizes the domestic and international research progress of several widely applied novel electro-optic materials (such as lithium niobate, lead lanthanum zirconate titanate, and potassium niobate tantalate) in the field of beam deflection. Based on the intrinsic deflection characteristics of different electro-optic materials, the features of corresponding beam deflection technologies are comprehensively analyzed and compared from the perspectives of application configurations and key performance metrics. Furthermore, the application prospects of these electro-optic material-based beam deflection technologies in space optical communication are discussed, the urgent challenges that need to be addressed currently are highlighted, and the directions for future research endeavors are clarified.
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