脉冲绿光激光器的研究  

Research on A Pulse Green Laser

作　　者：郭健洋 张健 郭亮 张庆茂 叶红 

机构地区：[1]广东省微纳光子功能材料与器件重点实验室,广东广州510006 [2]深圳市光大激光科技股份有限公司,广东深圳518109

出　　处：《应用激光》2013年第1期58-62,共5页Applied Laser

基　　金：中央财政支持地方高校专项资金项目激光先进制造创新培养基地资助项目(项目编号:510-C10293);广东省教育部产学研结合重点项目(项目编号:2010A090200048);广东省教育厅学科建设专项资助项目(项目编号:CXZD1139)

摘　　要：研制出为铜的精细焊接提供预热的脉冲绿光激光器。采用直型平行平面谐振腔和腔内倍频技术,在谐振腔内插入布儒斯特玻片和倒置望远镜,用氙灯泵浦Nd∶YAG/KTP,得到预期的单脉冲绿光能量。在电流模式下,设定输入电流180 A,脉宽2 ms,所得到的绿光单脉冲能量为255.4 mJ,倍频效率为5.78%,能量稳定性达±2%,满足铜精细焊接的预热需求。The present study constitutes an attempt to develop a pulse green laser to provide preheating for micro-welding of copper. Using an intracavity- frequency-doubled laser with a linear plane-plane resonator, where a Brewster plate and an inverted telescope are inserted, we obtain a green laser beam with a Xe light pumps Nd：YAG/KTP. Specifically, when the pump current is set at 180 A and the pulse width at 2 ms, a green laser beam with pulse energy of 255.4 mJ,frequency doubling efficiency of 5.78% and energy stability of ＋2% is acquired, which meets the preheating need of copper micro-welding.

关 键 词：激光器 绿光激光器 KTP晶体 布儒斯特玻片 倒置望远镜 

分 类 号：TN248.1[电子电信—物理电子学]