LD端面泵浦声光调QNd:YVO_4/KTA 1.53μm光学参量振荡激光器  

LD end-pumped Q-switched Nd:YVO_4/KTA optical parametric oscillator laser at 1.53 μm

作　　者：陈慧彬[1,2] 朱海永[1] 张戈[1] 黄呈辉[1] 郑益群[1] 魏勇[1] 段延敏[1] 王鸿雁 邱港 

机构地区：[1]中国科学院福建物质结构研究所,福州350002 [2]福建师范大学物理与光电信息科技学院,福州350007 [3]青岛海泰光电技术有限公司,山东青岛266100

出　　处：《强激光与粒子束》2010年第2期229-232,共4页High Power Laser and Particle Beams

基　　金：国家自然科学基金项目(10904143);福建省自然科学基金项目(2009J01308)

摘　　要：介绍了一台连续激光二极管(LD)端面泵浦声光调Q的高重复频率、高效率1.53μm人眼安全光学参量振荡激光器。激光基质材料采用Nd:YVO4晶体,采用按Ⅱ类非临界相位匹配切割、长20 mm的KTA晶体作为非线性光学晶体。在LD泵浦功率13.7 W,声光调Q重复频率60 kHz时,获得最高平均功率2.6 W的1.53μm信号光输出,泵浦光-信号光转换效率达到19%。在最高输出功率2.6 W下测得单脉冲宽度2.9 ns,对应的单脉冲能量和峰值功率分别为43.3μJ和15 kW。A highly efficient high-repetition-rate CW laser diode end-pumped acousto-optically （AO） Q-switched eye-safe intracavity optical parametric oscillator at 1.53 μm was experimentally investigated. The 20 mm long KTA crystal cut for type Ⅱ noncritical phase matching was adopted as the nonlinear crystal parametric converter in this experiment. We have achieved the sig- nal average power of 2.6 W under the LD pumping power of 13.7 W and the pulse repetition rate of 60 kHz, corresponding to an optical-to-optical conversion efficiency of 19%. At the highest output power of 2.6 W, the signal pulse duration of 2.9 ns was ob- tained, corresponding to the single pulse energy of 43.3 μJ and peak power of 15 kW, respectively.

关 键 词：光学参量振荡器 ND:YVO4 砷酸钛氯钾晶体 声光调Q 人眼安全 

分 类 号：TN248.1[电子电信—物理电子学]