Fig. 1. Key modules of thin-disk laser. (a) Gain module; (b) schematic of pump module

Fig. 2. Temperature rise characteristic of thin-disk crystal

Fig. 3. Schematic of kilowatt picosecond laser. (a) Regeneration pre-amplification; (b) main amplification

Fig. 4. Main output parameters of kilowatt picosecond laser at repetition rate of 1 MHz. (a) Pulse time-domain distribution; (b) power stability curve; (c) laser output characteristics under different pump currents; (d) beam focusing characteristics

Fig. 5. Main output parameters of kilowatt picosecond laser at repetition rate of 100 kHz. (a) Laser output characteristics under different pump currents; (b) beam focusing characteristics

Fig. 6. Developed physical appearance of kilowatt picosecond laser