光学学报, 2006, 26 (1): 81, 网络出版: 2006-04-20
5 TW/40 fs级台式钛宝石激光系统研究
Studies on 5 TW/40 fs Table-Top Ti∶Sapphire Laser System
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
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。
Abstract
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 m2.
梁敏, 李文雪, 胡婉约, 王二玉, 丁良恩. 5 TW/40 fs级台式钛宝石激光系统研究[J]. 光学学报, 2006, 26(1): 81. 梁敏, 李文雪, 胡婉约, 王二玉, 丁良恩. Studies on 5 TW/40 fs Table-Top Ti∶Sapphire Laser System[J]. Acta Optica Sinica, 2006, 26(1): 81.
PDF全文
