A high power laser system delivering a 20-TW, 0.5 - 0.8 ps ultra-short laser pulse and a 20-J, 500-ps long pulse simultaneously in one shot is completed. This two-beam laser operates at the wavelength of 1053 nm and uses Nd doped glass as the gain media of the main amplification chain. The chirped-pulse amplification (CPA) technology is used to compress the stretched laser pulse. After compression, the ultrashort laser pulse is measured: energy above 16.0 J, S/N contrast ratio ~ 10^(5) : 1, filling factor ~>52.7%. Another long pulse beam is a non-compressed chirped laser pulse, which is measured: energy ~ 20 J, pulse duration 500 ps. The two beams are directed onto the target surface at an angle of 15°.
© 2005 Chinese Optics Letters
Xinglong Xie, Fengqiao Liu, Jingxin Yang, Xin Yang, Meirong Li, Zhiling Xue, Qi Gao, Fuyi Guan, Weiqing Zhang, Guanlong Huang, Yifei Zhuang, Aimei Han, and Zunqi Lin, "Dual sub-picosecond and sub-nanosecond laser system," Chin. Opt. Lett. 1, 658-660 (2003)