Fig. 1. Experimental setup of high-energy solid-state femtosecond laser system

Fig. 2. Simulation of beam self-reproduction. (a) Schematic diagram; (b) Beam size at different positions (The dashed line in figure (b) corresponds to the device position in the figure (a))

Fig. 3. Output results of amplifier. (a) Output power at 5 kHz; (b) Output power at 1 kHz; (c) Output energy; (d) Spectra

Fig. 4. Result of compressed. (a) Autocorrelation curve; (b) M² curve; (c) Depolarization power; (d) Stability of energy

Fig. 5. Result of frequency conversion. (a) SHG; (b) SFG; (c) Output spectra; (d) M² curve; (e) Stability of power