研制了一台无水冷激光二极管(LD)侧面抽运高能量、高光束质量全固态Nd:YAG调Q激光器。激光器采用半导体制冷器(TEC)进行整体冷却,有利于激光器的小型化、便携化。实验使用的Nd:YAG晶体棒尺寸为φ7mm×100mm,掺Nd的原子数分数为1.1%,LD抽运的最大峰值功率为15kW。在10 Hz重复频率下获得最大脉冲能量为350mJ、脉冲宽度为9.7ns、光-电转换效率为6.7%、能量稳定度小于5%的1064nm激光输出,水平和垂直方向的光束质量M2分别为7.7和12.3。 An all-solid-state Nd: YAG Q-switched Q-laser with high energy and high beam quality was developed on the side of LD without laser diode. The laser uses the semiconductor cooler (TEC) for overall cooling, which is beneficial to the miniaturization and portability of the laser. The experimental Nd: YAG crystal rod has a size of φ7mm × 100mm, the atomic fraction of Nd doped is 1.1%, and the maximum peak power of LD pump is 15kW. The 1064nm laser output with the maximum pulse energy of 350mJ, the pulse width of 9.7ns, the photoelectric conversion efficiency of 6.7% and the energy stability of less than 5% was obtained at a repetition rate of 10 Hz. The beam qualities M2 in the horizontal and vertical directions were 7.7 And 12.3.