二极管端面泵浦Nd:YAG 946nm激光器理论分析  

Theoretical Analysis of the Operation at 946 nm of Nd:YAG Longitudinally Pumped with Diode Laser

作　　者：杜建新[1] 张风传[2] 何京良[1] 

机构地区：[1]山东师范大学物理系现代光学实验室,济南250014 [2]临沂师范学院计算机科学系,临沂276000

出　　处：《量子电子学报》2003年第4期415-418,共4页Chinese Journal of Quantum Electronics

基　　金：山东省教育厅科技应用项目

摘　　要：利用激光谐振腔处于稳态时的速率方程导出了准三能级Nd:YAG 946 nm起振时透射损耗与最佳激光晶体长度的关系,直观地给出了其计算机模拟.在与1064 nm透射损耗相比较的基础上,形象给出了一系列情况下的最低镀膜要求,并且模拟了激光阈值、输出功率和各种损耗及泵光光斑大小的关系:为设计室温下高效运转的946 nm激光器提供了必要的理论数值参照.这种分析方法对研究此类低增益,准三能级或三能级激光系统输出特性有借鉴意义.Numerical modeling has been given to describe the relation between optimal crystal length and the transmission of 946 nm output. The equation had been derived of the laser rate formula of the steady-state case in the laser cavity. By comparison of the output transmission between 946 nm and 1064 nm, we give a series of diagrams which discribe the minimized claims to coat in many cases. How the concerned factors influence the 946 nm lasing threshold and its output power has also been given. All the results will be useful for more efficient operation at 946 nm of Nd:YAG. The metholds adopted to deal with the low gain and quasi-three-lever or three-lever system will be enlightening.

关 键 词：准三能级 最佳激光晶体长度 阈值比较 蓝色激光器 ND:YAG激光器 二极管端面泵浦 

分 类 号：TN248.13[电子电信—物理电子学]