摘要
在TSA-25系统输出35 mJ,800 nm啁啾脉冲的基础上,建立了以钛宝石作为增益介质的二级啁啾脉冲放大(CPA)系统。使用0.6 J和1.6 J,532 nm,10 Hz Nd∶YAG激光抽运,输出脉冲能量达到500 mJ,经压缩脉冲宽度为41 fs,压缩器的能量转换效率为63%,峰值功率可达7.6 TW。通过对放大器系统的钛宝石晶体、抽运密度以及多通结构通道数的选择等实验,有效地提高了能量放大器的萃取效率。其主放大器能量萃取效率达到32%,整个系统占用尺寸不到10 m2。
A table-top Ti： sapphire laser system with two-stage amplifier was built based on TSA-25 regeneration amplifier. Pumped by 0, 6 J and 1,6 J, 532 nm, 10 Hz of Nd： YAG lasers, the output energy reached 500 mJ and a pulse with duration of less than 41 fs was generated by using a single grating compressor, the energy convevsion efficiency of the compressor was 63% and the peak power reached 7, 6 TW, By the experiments on the different absorption of crystals for 532 nm, pump-to-IR efficiency with pump fluence and passes of amplification, the system was optimized with an extraction efficiency of power amplifier ～32 %, compacted less than 10 m^2.
出处
《光学学报》
EI
CAS
CSCD
北大核心
2006年第1期81-85,共5页
Acta Optica Sinica
关键词
超快光学
超短脉冲激光
啁啾脉冲放大
萃取效率
钛宝石
ultrafast optics
ultrashort pulse laser
chirped pulse amplification
extraction efficiency
Ti：sapphire
