全固化自锁模飞秒Ti∶S激光器实验研究  

EXPERIMENT OF ALL-SOLID-STATE SELF-MODE-LOCKED FS Ti∶S OSCILLATOR

作　　者：白晋涛[1] 穆参军[1] 于连君[2] 王屹山[2] 陈国夫[2] 

机构地区：[1]西北大学光子学与光子技术研究所 [2]中国科学院西安光学精密机械研究所瞬态光学技术国家重点实验室,西安710068

出　　处：《光子学报》2001年第10期1292-1296,共5页Acta Photonica Sinica

基　　金：国家自然科学基金资助项目 (批准号 :697780 1 2 )

摘　　要：首次在国内系统报道了以腔内 L BO倍频 Nd∶ YVO4 激光器为泵浦源的全固化自锁模飞秒钛宝石激光器的实验结果 .设计了一种热不敏腔内 LBO倍频线性折叠腔结构 ,获得到了2 5.5%的光转换效率 ,泵浦功率为 2 2 W时得到了 5.6 W的基模绿光输出功率 ;以该激光器为泵浦源 ,在线性 Z型腔的基础上 ,使用了一种能够通过改变腔内凹面聚焦镜折叠角消除象散的方法 ,直接由钛宝石激光器得到了脉冲宽度为 2 2 fs、功率为 3 0 0 m W的光脉冲 .整个激光系统稳定性好 ,噪音明显低于 Ar3 +All solid state self mode locked fs Ti∶Sapphire oscillator pumped by Nd∶YVO 4 laser with intracavity LBO frequency doubling is reported systematically.To our knowledge,it is first time inside our country.A new linear fold cavity which is insensitive to thermal for Nd∶YVO 4 laser with intracavity LBO frequency doubling is designed.5.6W green laser can be achieved at a pumping power of 22W.Corresponding to conversion efficiency is 25.5%.22fs and 300mW pulse trains have been obtained directly from Ti∶Sapphire oscillator pumped by our Nd∶YVO 4,A new method is used,in which can eliminate astigmatism inside cavity by changing the fold angle on concave focus mirror of the Ti∶Sapphire oscillator based on a linear Z cavity.The stability of all the laser system is good and its noise is much lower than the laser pumped by Ar 3+ laser.

关 键 词：腔内LBO倍频 ND:YVO4激光器 钛宝石振荡器 全固化自锁模飞秒钛宝石激光器 腔体结构 

分 类 号：TN248.1[电子电信—物理电子学]