全固态多波长飞秒脉冲激光系统(英文)  

ALL-SOLID-STATE MULTI-WAVELENGTH FEMTOSECOND PULSE LASER SYSTEM

作　　者：田丰[1] 黄圣鸿[2] 白晋涛[2] 王屹山 陈国夫 

机构地区：[1]长安大学基础部,西安710064 [2]西北大学光子学与光子技术研究所,西安710069 [3]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》2002年第9期1112-1115,共4页Acta Photonica Sinica

基　　金：ThisworkwassupportedbytheChineseNationalScienceFoundation .UndercontrolNo .697780 1 2

摘　　要：利用棱镜对引进频谱空间啁啾来补偿飞秒脉冲激光二次谐波产生中的相位失配 ,提高了倍频效率 建立了一套全固态、多波长 ( 1 0 65nm ,5 32nm ,82 3.1nm ,40 2nm)飞秒脉冲激光系统 自制的Nd :YVO4激光器输出 5 32nm绿光激光 ,最高平均功率可达 5 .6W 当用 2 .5W绿光激光泵浦时 ,从自制的钛宝石激光器及经BBO倍频可分别输出中心波长为 82 3.1nm和 40 2nm ,平均功率 30 0mW和73mW ,谱宽 32 .3nm和 5 .1nm ,脉宽 2 2fs和 33.3fs、重复率 1 0 8MHz的近红外和蓝光激光 整个系统具有结构紧凑、倍频效率高。The high efficiency frequency doubling of fs pulses in BBO is demonstrated, which employed the frequency space chirp technology. One all solid state laser system is developed, from which four wavelength lasers from the far infrared to blue range, 1064, 532, 823 and 402nm can be output. The laser system is pumped by a LD pumped Nd:YVO4/KTP laser at 532nm, a Ti:sapphire laser , and the nonlinear second harmonic generation crystal BBO are used to generate different wavelength. Maximum average powers (repetition rate 100MHz) of 300mW at 823nm, 73mW at 402nm, are obtained when the pumping power is 2.5W. The frequency doubling efficiency of 24% is reached. The main characteristics of this system are presented.

关 键 词：全固态多波长飞秒脉冲激光系统 频谱空间啁啾 相位匹配 多波长激光器 倍频效率 

分 类 号：TN248[电子电信—物理电子学]