基于掺镧锆钛酸铅电光材料的光学相控阵光束扫描器

基于掺镧锆钛酸铅(PLZT)电光陶瓷材料的光学特性,提出了一种具有上下电极结构的光学相控阵高速光束扫描器。在理论上,分析了具有这种结构的光学相控阵的光束电光偏转特性和机制;在实验上,分析了掺镧锆钛酸铅材料的相位调制特性和损耗特性,制作了相关的光学相控阵器件,并构建了相应的测试系统,获得了光束在空间的角度偏转,与理论分析结果相符。

Based on the optical characteristics of lead lanthanum zirconate titanate (PLZT) electro-optic ceramic, an optical phased-array beam deflector with up-down electrode structure's transverse electro-optic effect was proposed. The electro-optic deflection characteristic and mechanism of the deflector were analyzed theoretically. And the phase modulation and electro-induced loss characteristics were measured experimentally. A systematic experiment of related optical phase-array devices and measuring system was also designed to verify the theoretical results. The results show that the beam obtains a relative large angle deflection by using different applied voltages.