低阈值飞秒钛宝石激光器的理论研究  

Theoretical study of the Ti:sapphire laser with low pump threshold

作　　者：令维军[1] 郑加安[1] 贾玉磊[1] 魏志义[1] 

机构地区：[1]中国科学院物理研究所,北京100080

出　　处：《物理学报》2005年第4期1619-1623,共5页Acta Physica Sinica

基　　金：国家自然科学基金 (批准号 :60 2 2 5 0 0 5 ;10 2 2 740 1);国家重点基础研究专项基金 (批准号 :G19990 75 2 0 2 )资助的课题~~

摘　　要：利用数值求解的方法 ,从理论上系统分析了决定钛宝石激光器锁模阈值的几个关键因素 .定量分析了腔模对克尔效应的主导作用 ,并将光孤子模型引入低阈值锁模理论 ,分析了色散与阈值的关系 .根据理论指导在实验上完成了一台阈值低至 390mW自启动飞秒掺钛蓝宝石激光器 .In this paper, a theoretical and numerical analysis of the factors that affect mode-locked pump threshold was made. The key effect of cavity mode in Kerr-lens mode-locking was illustrated. At the same time, a soliton model showed the relation between the pump threshold and dispersion in the cavity. Based on the general analysis, a self-starting femtosecond Ti: sapphire laser with mode-locking threshold as low as 390 mW was demonstrated.

关 键 词：低阈值 飞秒钛宝石激光器 克尔透镜锁模 光孤子 

分 类 号：TN248[电子电信—物理电子学]