直接从钛宝石激光器获得超连续光谱  

Octave-spanning spectrum generation in Ti: sapphire oscillator

作　　者：王专[1] 王清月[1] 韩英魁[1] 曹士英[1] 张志刚[1] 柴路[1] 

机构地区：[1]天津大学精密仪器与光电子工程学院超快激光研究室

出　　处：《物理学报》2004年第10期3375-3378,共4页Acta Physica Sinica

基　　金：国家重点基础研究项目 (批准号 :G19990 75 2 0 1)资助的课题~~

摘　　要：采用啁啾镜和棱镜对相结合补偿色散的方法在自调Q自锁模钛宝石激光器腔内直接产生了超过一个倍频程的超连续光谱 ,光谱范围从 4 6 0nm到 10 0 0nm ;这是飞秒激光器输出光谱在短波波段第一次突破 5 0 0nm .这将使得脉冲的载波包络偏移频率的测量装置得到大大简化 。A Ti: sapphire oscillator emitting an octave-spanning spectrum that ranges from 460nm to 1000nm is demonstrated. To our knowledge, it is the first time that a supercontinuum extending beyond 500nm in the blue end is generated from a femtosecond oscillator. The self-Q-switched and self-modelocked Ti: sapphire oscillator uses chirped mirrors and a prism pair for dispersion compensation. These results will make the measurement of carrier-envelope offset frequency simpler and improve the stability of optical frequency metrology at the same time.

关 键 词：超连续光谱 钛宝石激光器 输出光谱 啁啾镜 自调Q 自锁模 短波 波包 棱镜 包络 

分 类 号：O433.54[机械工程—光学工程]