周期极化的LiNbO_3中二次谐波的产生与偏振控制  

Second-harmonic Generation and Its Polarization Control in Periodically Poled LiNbO_(3)

作　　者：李桢[1] 王素莲[2] 徐国定[2] 

机构地区：[1]郑州师专物理系,河南郑州450044 [2]河南大学物理与信息光电子学院,河南开封475001

出　　处：《河南大学学报（自然科学版）》2004年第4期14-18,共5页Journal of Henan University:Natural Science

摘　　要：在同一块LiNbO3晶体中,实现二次谐波的产生(SHG)及偏振控制.具体设计方法是,将一块z切的LiNbO3极化成周期不同的两个部分,在第一部分利用非线性光学效应产生二次谐波;在第二部分利用电光效应对二次谐波进行偏振控制.To achieve second-harmonic generation and its polarization control in periodically poled LiNbO_(3), a single integrated chip of z-cut LiNbO_(3) is periodically poled into two sections with different periods. Second-harmonic is generated in the first section and its polarization is controlled in the second section with an applied electric field along the y axis.

关 键 词：周期极化的LiNbO3晶体 准相位匹配(QPM) 二次谐波的产生与偏振控制 

分 类 号：O438[机械工程—光学工程]