基于级联PPMgLN晶体的双倍/三倍频双波长激光器  

Frequency Doubled/Tripled Dual Wavelength Laser Based on Cascaded PPMgLN Crystal

作　　者：孙杰 陈怀熹[1,3] 张新彬 冯新凯 李广伟[1,3] 粱万国 SUN Jie;CHEN Huaixi;ZHANG Xinbin;FENG Xinkai;LI Guangwei;LIANG Wanguo(Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China;College of Chemistry, Fuzhou University, Fuzhou 350108, China;Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou 350108, China)

机构地区：[1]中国科学院福建物质结构研究所,福州350002 [2]福州大学化学学院,福州350108 [3]中国福建光电信息科学与技术创新实验室(闽都创新实验室),福州350108

出　　处：《人工晶体学报》2021年第7期1386-1390,共5页Journal of Synthetic Crystals

基　　金：中国福建光电信息科学与技术创新实验室(闽都创新实验室)(1116100002)。

摘　　要：本文演示了紧凑的绿色和近红外双色连续波激光光源,其发射波长分别为516 nm和775 nm。设计并制造了级联的周期性极化掺镁铌酸锂晶体,用于同时转换通信波长的二次谐波(SHG)和三次谐波(THG),可以在相同温度下获得绿色和近红外激光的输出。通过建立一个单程激光测量系统,在2 W泵浦功率下获得516 nm的0.15 mW绿光和775 nm的1.19 mW的光,晶体温度控制在30.8℃。实验结果将为单激光器泵浦的紧凑型双波长共线激光器提供重要的案例。In this paper,a compact green and near-infrared two-color continuous wave laser source with emission wavelengths at 516 nm and 775 nm are demonstrated,respectively.A cascaded periodically poled Mg doped lithium niobate crystal is designed and fabricated for simultaneous conversion of second harmonic generation(SHG)and third harmonic generation(THG)of communication wavelength,the output of green and near-infrared laser can be obtained at the same temperature.By set up a single pass laser measurement system,0.15 mW green light at 516 nm and 1.19 mW light at 775 nm are obtained with 2 W pump power and the crystal temperature is controlled at 30.8℃.The experimental results will provide an important case for compact dual wavelength collinear laser which pumped by a single laser.

关 键 词：周期性极化MgO∶LiNbO3 准相位匹配 二次谐波产生 三次谐波产生 

分 类 号：O734[理学—晶体学]