报道了一种基于电光腔倒空技术的全固态Nd∶YVO4单纵模脉冲激光器。通过精确控制磷酸钛氧铷(RTP)普克尔盒的温度，降低了由于普克尔盒中2块RTP晶体对抽运、振荡激光能量的不均匀吸收导致的热退偏，提高了普克尔盒的偏振消光比。通过优化普克尔盒开关驱动源的下降沿时间，解决了下降沿时间过长导致的脉宽展宽及输出功率降低等问题。在抽运占空比为50%、抽运峰值功率为16.9 W、重复频率为200 Hz条件下，实验获得了脉宽为2.85 ns、峰值功率为1 MW的单纵模1.064 μm脉冲激光。50 ms内输出激光的峰值功率稳定性优于±1.8%，连续记录的1300发脉冲的脉冲上升沿时间抖动优于±0.2 ns。

A kind of all-solid-state single-longitudinal-mode Nd∶YVO4 pulse laser based on electro-optical cavity-dumping technology is designed and fabricated. The thermal depolarization originated from the nonuniform pump and laser absorption of the two RTP crystals is reduced via precise temperature control of the pockels cell, and the polarization extinction ratio of the pockels cell is consequently improved. By optimizing the fall time of the pockels cell driver, the problems such as pulse width broadening and power dropping due to the too long time of falling edge are all overcome. At the pump duty cycle of 50%, the incident peak pump power of 16.9 W and the repetition rate of 200 Hz, the single-longitudinal-mode pulse laser with pulse width of 2.85 ns, peak power of 1 MW is obtained. The measured peak power fluctuation of output pulse is less than ±1.8% during a given time of 50 ms, and the time jitter of pulse rising edge is less than ±0.2 ns during 1300 shots.