双端面泵浦Nd:YAG激光晶体棒温度特性研究  

Study on temperature characteristics of Nd: YAG laser crystal rod with dual end-pump

作　　者：范嗣强[1] 李麒麟[2] 路永乐[3] 陈丁华[1] 

机构地区：[1]重庆师范大学,市级高校光电材料与工程重点实验室,重庆401331 [2]重庆市第一中学,重庆400030 [3]重庆邮电大学光电学院,重庆400065

出　　处：《激光杂志》2018年第3期18-21,共4页Laser Journal

基　　金：重庆市教委应用基础研究项目(No.KJ1600311、No.KJ130655);重庆市科委前沿基础研究项目(No.cstc2014jcyj A70005);重庆市高校创新团队计划(No.CXTDX201601016)

摘　　要：为解决激光双端面二极管泵浦Nd：YAG激光晶体热效应问题,根据激光晶体的吸收特性参数,近似计算了双端面泵浦光在晶体内部的体积热源表达式,通过matlab软件模拟了双端面泵浦光在晶体内部产生的温度场分布。研究结果表明：分别使用30W泵浦光在晶体两个端面注入时,晶体棒内最大温升为650K,研究结果为提高全固态Nd：YAG激光器性能提供了理论依据。To solve laser crystal thermal effect problem of the double laser diode pumped Nd： YAG, approximate calculation of double pump in the crystal is conducted based on the absorption characteristics of the laser crystal param- eters. The size of internal heat source expression is carried out through the matlab software to simulate the double pump in the crystal interior temperature field distribution. The results show that with 30W pump energy injection on the crys- tal end face, maximum temperature in the crystals rise to 650K, which provides a theoretical basis of the study to im- prove solid-state Nd： YAG laser performance.

关 键 词：热效应 激光器 Nd:YAG棒 热传导系数 温度场分布 

分 类 号：TN248[电子电信—物理电子学]