对基于单模光纤的锁模再生放大器(即基于脉冲起振的耗散孤子锁模激光器)的动力学过程进行数值模拟,分析了输出脉冲能量、时域宽度、光谱宽度随入射脉冲在腔内循环次数增加的演化过程。实验中通过插入电光调制器使振荡腔从脉冲起振,阐述了该电光调制器选取脉冲的工作时序,实现了入射脉冲在腔内稳定循环13次;同时,在固定入射脉冲腔内循环2次的前提下,分析了抽运功率对输出光谱的影响,最终输出单脉冲能量为20nJ,光谱宽度约为60nm的脉冲。此外,还分析了基于单模光纤的锁模再生放大器输出脉冲能量增长受限的原因。 The dynamics of a mode-locked regenerative amplifier based on a single-mode fiber (ie, a dissipative soliton-mode-locked laser based on pulsed start-up) is numerically simulated. The output pulse energy, time domain width, The cycle of increasing the evolution of the process. In the experiment, the electro-optic modulator is inserted to make the oscillation cavity vibrate from the pulse. The working sequence of the electro-optic modulator is illustrated. The incident pulse can be stably circulated in the cavity for 13 times. At the same time, the pulse is circulated twice in the fixed incident pulse cavity , The influence of pumping power on the output spectrum is analyzed. Finally, a pulse with a single pulse energy of 20 nJ and a spectral width of about 60 nm is output. In addition, the reason why the output pulse energy of the mode-locked regenerative amplifier based on single-mode fiber is limited is also analyzed.