报道了激光二极管抽运工作波长为1.3 μm的高能量皮秒再生放大器，种子源为重复频率65 MHz、平均输出功率140 mW的被动锁模皮秒激光振荡器。通过优化再生放大器，获得了重复频率为1 kHz、脉宽小于20 ps、单脉冲能量大于1 mJ的高脉冲能量皮秒脉冲激光，脉冲能量稳定性均方根值小于0.3%，其倍频光束671 nm的质量因子M2小于等于1.1，这表明再生放大器输出激光具有很好的光束质量。

A laser diode pumped 1.3 μm high energy picosecond regenerative amplifier is reported. The passively mode-locked oscillator as a seed source provides repetition rate of 65 MHz and power of 140 mW. An effective regenerative amplifier is designed. The regenerative amplifier is operated at 1 kHz and its pulse duration is shorter than 20 ps. Its output pulse energy is 1 mJ. Its pulse stability root mean square is less than 0.3%. The beam quality factor M2 is less than or equal to 1.1 after second harmonic generation to 671 nm, which shows its good beam profile.