用于ps脉冲放大的大口径放电泵浦KrF激光器  

Large aperture discharge-pumped KrF laser for picosecond amplification

作　　者：袁孝[1] 刘晶儒[2] 吕百达[1] Julius Goldhar 

机构地区：[1]四川大学物理系,四川成都610064 [2]西北核技术研究所,陕西西安710024 [3]Electrical Engineering Department University of Marylandat College Park

出　　处：《强激光与粒子束》2002年第3期361-364,共4页High Power Laser and Particle Beams

摘　　要：以简单的火花间隙作为放电开关 ,建立了一种用于 ps脉冲激光放大的大口径放电泵浦 Kr F准分子激光器。该激光器的有效增益口径截面为 4 cm× 3cm,在自由运转情况下最大激光输出能量为 1.3J,脉宽2 0 ns。用作 ps放大器时 ,利用光学偏振放大方式获得了激光能量 14 0 m J,脉冲宽度 10 ps的激光输出。利用 XeA large aperture discharge-pumped KrF laser module with simple spark gaps was developed. The laser beam cross section of 4cm×3cm and the maximum laser output energy of 1.3J in 20ns were obtained at the charging voltage of 30kV and gas mixtures of ∶∶=0.1∶2∶97.9. The gain and absorption coefficients at different gas mixtures were measured with a frequency doubled dye laser pumped by a XeCl laser. Using this laser module as a ps amplifier, the output energy of 140mJ in 10ps was obtained.

关 键 词：ps脉冲放大 KRF激光器 放电泵浦 ps激光放大器 设计 氟化氢 准分子激光器 

分 类 号：TN722.32[电子电信—电路与系统] TN248.2