报道了一台重复频率400 Hz、平均功率1.52 W的二极管抽运全固态钠导星激光器。利用两路声光调Q的1064 nm与1319 nm激光作为基频光, 并采用主从电源模式以及电子学延迟补偿技术实现两个调Q脉冲的时间同步, 然后在腔外通过一块LBO晶体和频产生了589 nm钠导星激光, 和频效率约达25.1％, 系统电光效率0.32%。为了实现中心波长与钠D2a线的锁定, 在1064 nm激光器内插入一块标准具, 并采用水冷控温, 通过调节控制标准具的倾斜角度和温度, 最终将中心波长对准至589.159 nm, 并且偏差小于±1 pm。

A 400 Hz repetition rate, 1.52 W average power diode-pumped all-solid-state narrow linewidth sodium guide star laser was reported. Two acousto-optic Q-swithed 1064 m and 1319 nm lasers were used as basic-frequency lasers and they generated 589nm sodium guide star laser through a extra-cavity sum-frequency generation(SFG) LBO crystal. The master-slave drivers mode and the electronics delay compensation technology were employed to make the two Q-pulses time-synchronization. The conversion efficiency of SFG was about 25.1% and the electro-optical efficiency was 0.32%. To lock the central wavelength to the sodium D2a line,an etalon with water cooling was inserted into the 1064 nm oscillator.The central wavelength finally aimed at 589.159 nm(error less than ±1 pm) by tuning the temperature and angle of the etalon.