摘要
研制了高速电光晶体开关阵列数字光束扫描器。光束扫描器由电光分束单元和偏转棱镜阵列构成。电光分束单元是通过铌酸锂电光开关与偏振分光棱镜的组合实现。电光分束单元按照多级级联和空间组合构成3×3矩形光束扫描阵列。光束扫描阵列后加棱镜阵列使光束产生需要的角度偏转,可以实现远场大范围光束阵列扫描。同时可以实现激光光束扫描和跟踪的实时可编程控制。系统的实验研究表明光束扫描器的设计参数与实验测量结果吻合。
A high-speed digital beam scanner based on electro-optic crystal switch array is developed.The scanner is composed of electro-optic beam splitter unit and deflection prism array.The electro-optic beam splitter unit is combined by LiNbO3 electro-optic switch and polarized beam splitter.The 3×3 rectangle beam scanning array is achieved by multistage cascade and space composition of electro-optic beam splitter units.The prism array behind beam scanning array can provide required angle deflection.The large-range far-field beam array scanning can be achieved.The beam scanning and tracking can be real-time controlled by programming.The systematical experiments confirm that the designed parameter of beam scanner agrees with the measured results.
出处
《光学学报》
EI
CAS
CSCD
北大核心
2010年第12期3430-3434,共5页
Acta Optica Sinica
基金
中国科学院支撑项目(61501010403)
国家自然科学基金委员会青年基金(60908029,60907006)
上海市自然科学基金(09ZR1435300)资助课题
关键词
光通信
电光晶体开关阵列
数字光束扫描器
电光分束单元
偏转棱镜阵列
扫描阵列
optical communication
electro-optic switch array
digital beam scanner
electro-optic beam splitter unit
deflection prism array
scanning array
