LD侧面泵浦Nd:YAG无水冷调Q脉冲激光器  

LD side-pumped Nd:YAG Q-switched laser without water cooling

作　　者：凌铭[1] 武志超[1] 谭雪春 张海波 梁柱 

机构地区：[1]长春理工大学理学院激光技术研究所

出　　处：《红外与激光工程》2007年第z1期288-291,共4页Infrared and Laser Engineering

摘　　要：研制了一种新型泵浦结构的LD侧面泵浦Nd:YAG无水冷调Q全固态脉冲激光器。通过选取合适激光晶体,用每组12个LD厘米条构成的三列阵列管,按120o均匀分布,进行侧面泵浦。在泵浦光反向冷却套侧壁镀高反射金膜,使激光棒侧向均匀泵浦,实现低阶膜输出。用柱透镜聚焦,利用光线追踪法,通过计算机数值计算,获得合理参数,达到高效耦合。用半导体制冷器冷却,使内部热量及时散出,通过外部大热沉向空间散热,实现无水冷,保证激光器恒温工作。减小了激光器体积,提高了系统效率,获得波长1.06nm、脉冲宽度10～12ns、最大能量98mJ的低阶膜激光输出。A new pumping structure about LD side-pumped Nd:YAG Q-switched laser without water cooling was reserched.After selecting proper volume of laser crytal and using three LD centimeter strips made by 12 laser diodes,side-pumping was done.Using the technique of pillar lens focus,method for ray tract,and cooling with TE diode cooler,the low mode output of 10～12 ns pulse width and maximum 98 mJ in 1 064 nm is obtained,as well as reduced the laser volume and increased the system efficient at last.

关 键 词：泵浦结构 侧面泵浦 激光二极管阵列 激光晶体 

分 类 号：TN248.1[电子电信—物理电子学]