基于硅基光学相控阵的大范围二维光束扫描（英文）  

Ultra-wide Two-dimensional Beam Steering by Silicon Integrated Optical Phased Array

作　　者：李中宇 章羚璇 曾超 杜书剑 葛志强[1,2,3] 谢鹏 张其浩 王国玺 孙笑晨[1,2] 米磊 张文富 LI Zhong-yu;ZHANG Ling-xuan;ZENG Chao;DU Shu-jian;GE Zhi-qiang;XIE Peng;ZHANG Qi-hao;WANG Guo-xi;SUN Xiao-chen;MI Lei;ZHANG Wen-fu(State Key Laboratory of Transient Optics and Photonics,Xi′an Institute of Optics and Precision Mechanics,Chinese Academy of Sciences,Xi′an 710119,China;University of Chinese Academy of Sciences,Beijing 100049,China;China-UK Joint Research Center of Micro/Nano Photonics,Xi′an Institute of Optics and Precision Mechanics,Chinese Academy of Sciences,Xi′an 710119,China)

机构地区：[1]中国科学院西安光学精密机械研究所瞬态光学与光子技术国家重点实验室,西安710119 [2]中国科学院大学,北京100049 [3]中国科学院西安光学精密机械研究所中英联合微纳光子学研究中心,西安710119

出　　处：《光子学报》2018年第9期99-107,共9页Acta Photonica Sinica

基　　金：The National Natural Science Foundation of China(Nos.61475188,61705257,61405243);the Strategic Priority Research Program of the Chinese Academy of Sciences(No.XDB24030600)

摘　　要：基于硅基光学相控阵,提出一种结合了相位控制和不同周期光栅发射器的点阵扫描法,以实现大范围的二维光束扫描.对光束扫描装置进行仿真计算,结果表明,仅使用单波长的光源即可实现120°×100°的扫描范围和超过16×400个可分辨点.此光束扫描装置在应用时,同一时刻仅需要一部分有源器件工作,降低了相调所需的电能耗.所提方法为实现大范围、低成本和低功耗的二维光束扫描装置提供了一种可能的解决方案,尤其适用于低成本的固态激光雷达.An alternative approach to realize 2D beam steering with ultra-wide range by silicon integrated optical phased array is proposed.A dot matrix scanning method,using the phase control and grating emitters with different periods,is conceived to design the optical phased array device without the requirement of tunable lasers.Simulations demonstrate an ultra-wide steering range up to 120°×100°,together with over 16×400 resolvable points by using a single-wavelength laser.Moreover,the designed optical phased array device demands only a part of active elements working simultaneously,which benefits to reduce the electrical power consumption.The proposed approach provides a promising solution for wide-angle,low-cost,and low-power consumption 2D beam steering devices,especially suitable for solid-state light detection and ranging systems.

关 键 词：光电子学 光学相控阵 光栅 绝缘体上硅 光束扫描 激光雷达 

分 类 号：TN256[电子电信—物理电子学]