级联畴反转结构大角度电光偏转器的设计与仿真  

Design and Simulation of a Large-Angle Electro-Optic Laser Scanner with Cascaded Ferroelectric Domains

作　　者：胡龙敢 万玲玉[1,2] 廖洋[1,2] 

机构地区：[1]广西大学物理科学与工程技术学院,南宁530004 [2]广西相对论天体物理重点实验室,南宁530004

出　　处：《电光与控制》2015年第3期77-81,共5页Electronics Optics & Control

基　　金：国家自然科学基金(61367004);广西自然科学基金(2013GXNSFFA019001)

摘　　要：针对大角度的高速光扫描,利用三角形畴反转结构的电光偏转性质,设计了一种大角度电光偏转器,由1个抛物形和10个半抛物形畴反转结构偏转器级联组成。通过对抛物形和半抛物形偏转器的参数优化,得到了该电光偏转器的优化结构,设计完成的级联偏转器整体尺寸为130.0 mm×16.0 mm×0.5 mm(长×宽×高),当施加电场为±10.09 V/μm时,偏转器扫描范围为±30.6°。利用光束传播法(BPM)对偏转器进行了性能仿真,仿真表明在修正电压下,偏转器很好地实现了大角度的电光偏转功能,仿真结果与理论分析相符合。Aiming at the optical scanning of wide field-view with high speed, a large angle electro-optic scanner was designed based on the deflecting property of the prism domains.It mainly consists of one parabola deflector and ten half-parabola deflectors with cascaded ferroelectric prism domains.By design optimization, the structure parameters of scanner were given and the overall size of scanner is 130.0 mm ×16.0 mm ×0.5 mm.When the applying electric field is ± 10.09 V / μm, the deflecting range is ± 30.6°.Using the beam propagation method（ BPM） , the capability of scanning was evaluated, and the simulation results show that the deflector has good deflecting properties.The simulation analysis is consistent with the theoretical calculation.

关 键 词：电光偏转器 畴反转结构 大角度扫描器 光束传播法 

分 类 号：TP211.6[自动化与计算机技术—检测技术与自动化装置]