KDP三维正常声电光器件  

KDP Three-dimensional Isotropic Acousto-electro-optic Device

作　　者：俞宽新[1] 何世雅[1] 赵宝森[1] 丁鹏[1] 

机构地区：[1]北京工业大学应用数理学院,北京100022

出　　处：《压电与声光》2004年第1期6-9,共4页Piezoelectrics & Acoustooptics

基　　金：国家自然科学基金项目资助(60077017)

摘　　要：给出了三维声电光效应的耦合波方程,推出了其衍射效率的计算公式;讨论了KDP三维正常声电光器件的设计方法,包括晶体切向结构和换能器尺寸的设计;制作了KDP三维正常声电光器件,测试了器件相对衍射效率随直流电压变化的实验曲线,测试结果与理论计算相符合。多维声电光器件在多通道光信号处理和多路光通信领域有广泛应用前景。In this paper a coupled wave equation of three-dimensional (3-D) acousto-electro-optic (AEO) effect is given. The formula of diffraction efficiency of the effect is derived. Design method, including cut direction of the crystal and size of the transducer,is also discussed. A 3-D isotropic AEO device is designed and made by KDP crystal.Experiment curves of relative diffraction efficiency versus direct current (DC) voltage are shown.Measured results agree with theoretical calculation.Multi-dimensional AEO devices have applications in multi-channel optic signal processing and optic communication.

关 键 词：三维声电光效应 纵向电光效应 拉曼-奈斯正常声光效应 KDP晶体 

分 类 号：TN65[电子电信—电路与系统]