Temperature-dependent second harmonic generation process based on an MgO-doped periodically poled lithium niobate waveguide  

作　　者：沈世奎 杨爱英 左林 崔建民 孙雨南 

机构地区：[1]School of Opto-Electronics, Beijing Institute of Technology

出　　处：《Chinese Physics B》2011年第10期258-261,共4页中国物理B（英文版）

基　　金：supported by the National Natural Science Foundation of China (Grant Nos. 60777024 and 60978007)

摘　　要：The temperature dependency of a 5-mo1% MgO-doped periodically poled lithium niobate waveguide was investi- gated in this paper. We started with the temperature-dependent refractive index equation for the waveguide. Secondly, the temperature dependency of the second harmonic generation effect was experimentally researched under different temperatures and pump powers. The quasi-phase matched wavelengths, efficiency bandwidths and peak efficiencies of the waveguide were measured. The experimental results agreed with theoretical simulations, which are indispensable in the following all-optical sampling studies based on the cascaded second harmonic generation/difference-frequency generation process in the current device.The temperature dependency of a 5-mo1% MgO-doped periodically poled lithium niobate waveguide was investi- gated in this paper. We started with the temperature-dependent refractive index equation for the waveguide. Secondly, the temperature dependency of the second harmonic generation effect was experimentally researched under different temperatures and pump powers. The quasi-phase matched wavelengths, efficiency bandwidths and peak efficiencies of the waveguide were measured. The experimental results agreed with theoretical simulations, which are indispensable in the following all-optical sampling studies based on the cascaded second harmonic generation/difference-frequency generation process in the current device.

关 键 词：periodically poled lithium niobate second harmonic generation quasi-phase matching Sellmeier equation 

分 类 号：O437[机械工程—光学工程] TN252[理学—光学]