LD泵浦Nd:GdVO_4三能级激光跃迁研究  

High efficiency continues-wave Nd:YAG/BIBO 1.28 blue laser

作　　者：李锋[1] 刘蓉[1] 张继良[2] 白晋涛[1] 

机构地区：[1]西北大学光子学与光子技术研究所,陕西西安7100692 [2]商洛学院物理系,陕西商洛726000

出　　处：《商洛学院学报》2007年第2期27-29,53,共4页Journal of Shangluo University

基　　金：陕西省教育厅专项科研计划项目(05JK185);陕西省教育厅产业化项目(03JC06)

摘　　要：目的研究实现LD泵浦Nd:GdVO4三能级激光跃迁的相关条件.方法实验探测分析.结果得到在不同腔损耗情况下的能级跃迁光谱.结论由于发射截面大的四能级跃迁对激光上能级粒子数损耗严重,很难形成高效的三能级激光振荡,抑制四能级跃迁是获得这些三能级激光振荡的前提条件.随着腔镜对这些三能级跃迁损耗的增加,激光发射和泵浦吸收的平衡过程将导致激光发射波长蓝移.Aim Reveal the prerequisite to realize three level laser transition of LD pumped Nd：GdVO4; Method Analysis based on experimental detection;Results Transition spectrum of different laser energy level were detected under different cavity lose;Conclusion The results shown that,particle population of upper laser level were consumed seriously by four-level transitions with large emission cross section,its hardly to form effective three-level transition,and the prerequisite to realize effective three-level laser transition is to restrain these four-level transitions.With cavity lose increase at these three-level transitions,the balance between emission and absorption processes results in a blue shift of laser lasing wave length.

关 键 词：激光物理 LD抽运 全固态蓝光激光器 三能级跃迁 

分 类 号：TN218.1[电子电信—物理电子学]