高功率全固态连续单频1342nmNd∶GdVO_4激光器的设计及实现  

High Power All-Solid-State Continuous-Wave Nd∶GdVO_4 Laser of Single-Frequency Operation at 1342 nm

作　　者：王垚廷[1] 张瑞红[1] 李武军[1] 

机构地区：[1]西安工业大学物理系,陕西西安710021

出　　处：《激光与光电子学进展》2015年第11期133-137,共5页Laser & Optoelectronics Progress

摘　　要：为提高1342 nm波段全固态连续单频Nd∶Gd VO4红外激光器的输出功率,本文选用复合式Nd∶Gd VO4晶体为激光介质,并对其相关参数进行优化,以提高激光输出功率。研究表明,热致衍射损耗正比于激光介质横截面尺寸,热损伤阈值抽运功率随横截面尺寸的减小而增加。通过环形腔选模的方法实现激光器单频运转,并选用横截面尺寸较小的激光晶体。实验证明,1342 nm激光最大输出功率为3.1 W,较前期激光器输出功率提高30%。To scale the output power of all-solid-state continuous-wave Nd： GdVO4 laser of single-frequency operation at 1342 nm, the composite Nd ： GdVO, laser crystal is used as laser medium, and its relevant parameter is optimized. The theoretical calculation shows that the thermally induced diffraction losses is proportional to the cross-section dimension of laser medium, and the pump power of thermal fracture limit is the decreasing function of it. A ring laser resonator is designed to make the laser single-frequency operation. The experimental result shows that the maximum output power is 3.1 W, and the conversion efficiency increases by 30%.

关 键 词：激光器 单频 环形腔 复合激光介质 热损伤 热致衍射损耗 

分 类 号：TN248.1[电子电信—物理电子学]