激光二极管端面纵向泵浦Nd:YVO_4激光器的热效应研究  

Investigation of Thermal Lensing Effect in Nd:YVO_4 Lasers End-pumped by Laser-diodes

作　　者：王志勇[1] 李晓青[1] 焦月春[1] 刘建丽[1] 张宽收[1] 

机构地区：[1]量子光学与光量子器件国家重点实验室山西大学光电研究所,山西太原030006

出　　处：《量子光学学报》2011年第2期158-162,共5页Journal of Quantum Optics

基　　金：国家自然科学基金(60878003);国家重大科学研究计划(2010CB923101);国家863计划项目(2011AA030203)

摘　　要：针对激光二极管端面纵向泵浦Nd:YVO4激光器,本文理论和实验详细研究了Nd:YVO4晶体的热透镜效应。在激光二极管的中心波长分别为808nm和880nm及分别采用单端端面纵向泵浦和双端端面纵向泵浦结构情况下,实验测量了Nd:YVO4晶体的热透镜焦距,实验结果和理论预测基本吻合。同时在泵浦功率60W时获得了18.8W的连续基横模激光输出。The thermal lensing effect of laser crystal were experimental and theoretically investigated in Nd： YVO4 lasers end-pumped by laser-diodes （LD）. In the pump configurations of （1） dual-end pumped at 880 nm, （2） one-end pumped at 880 nm, （3） dual-end pumped at 808 nm, （4） one-end pumped at 808 nm, the thermal focal lengthes of laser crystal were measured by using the experimental results of the maximum incident pump powers at the different laser cavity lengthes. A maximum TEM00 output power of 18.8 W was obtained at the LDs dual-end pumped at 880 nm of 60 W.

关 键 词：端面泵浦固体激光器 热透镜效应 直接泵浦 

分 类 号：O431[机械工程—光学工程]