Fig. 1. Nonlinear temporal response function of preamplifier system

Fig. 2. Dependence of regenerative amplifier state on output of preamplifier system

Fig. 3. Schematic of laser pulse precise shaping closed-loop feedback system

Fig. 4. Schematic of laser pulse energy closed-loop control system

Fig. 5. Closed-loop iterative process of laser shaping pulse

Fig. 6. Closed-loop result of laser shaping pulses

Fig. 7. Energy stability result of laser shaping pulse

Fig. 8. Laser shaping pulses applied to physical experiments