近红外掺镁周期极化铌酸锂光参变振荡器  

Near infrared Optical Parametric Oscillator Based on Periodically Poled MgO:LiNbO_3

作　　者：吴羽[1] 焦中兴[2] 何广源[2] 

机构地区：[1]广州大学实验中心,广东广州510006 [2]中山大学理工学院,广东广州510275

出　　处：《激光与光电子学进展》2012年第6期132-135,共4页Laser & Optoelectronics Progress

摘　　要：研究了掺镁周期性极化铌酸锂光参变振荡器(PPMgLN-OPO)在近红外波段的调谐特性和输出特性。计算了PPMgLN-OPO的调谐曲线,并采用Nd:YVO4激光器产生的1.064μm激光作为抽运源,验证了其温度调谐特性,实现了1.8～2.6μm的可调谐红外激光输出。此外,比较了长度为2cm和3cm的PPMgLN晶体的OPO输出特性,并在抽运功率为6.7W时,获得了最高功率为3.2W的2μm激光输出,转换效率达47.8%。Theoretical and experimental study is presented on near infrared band tuning and output characteristics of optical parametric oscillator based on periodically poled MgOLiNbO3 （PPMgLN-OPO）. The temperature tuning curve of PPMgLN is calculated. Through OPO experiments based on PPMgLN pumped by a 1. 064μm Nd： YVO4 laser, we realize tunable infrared laser output of 1.8-2.6μm. We also compare the output characteristics of length of 2 cm and 3 cm PPMgLN crystals. When the pump power is 6.7 W, up to 3.2 W laser output in the 2 μm band is generated with a conversion efficiency of 47.8 %.

关 键 词：激光技术 非线性光学 温度调谐 光参变振荡器 掺镁周期性极化铌酸锂 

分 类 号：TN248.1[电子电信—物理电子学]