给出了一种适用于空间应用的全固态高重复频率窄脉冲激光器。激光器采用超稳双porro棱镜直线谐振腔, 以LD侧面抽运Nd∶YAG板条, 磷酸氧钛铷(RTP)晶体作为电光调Q开关, 并利用偏振耦合输出激光。实现了激光脉冲重复频率为1 kHz、平均功率为1.15 W、脉冲宽度为1.3 ns、光束质量因子M2为M2x=1.20和M2y=1.23、波长为1064 nm的脉冲激光输出。激光器结构紧凑, 性能良好, 可作为未来新型空间探测激光雷达系统的光源。

A all solid-state laser with high repetition frequency and narrow pulse width for space applications is shown. The laser adopts ultra-stable double porro prism cavity, using laser diode side pumping, the rubidium titanyl phosphate (RTP) crystal as electro-optically Q-switched switch, and polarization-coupled outputting. The system achieves 1 kHz laser pulse repetition frequency, 1.15 W average power, 1.3 ns pulse width, the beam quality factor M2 of two directions of M2x =1.20, M2y=1.23, the output wavelength of 1064 nm. The laser has a compact structure and good performance, which can be used as the light source for the new space detection lidar in the future.