Fig. 1. (a) Diagram of optical path structure of laser system; (b) prototype of laser system

Fig. 2. Variation in output spectral intensity with wavelength when reflective bandwidths of FBG are (a) 0.05 nm, (b) 0.2 nm and (c) 0.6 nm; (d) maximum output power of fiber link under different repetition rates

Fig. 3. Output powers of three-stage solid-state amplifier operated at (a) 1 kHz, (b) 10 kHz, and (c) 100 kHz repetition rates with different input powers; (d) maximum output powers of three-stage solid-state amplifier with different repetition rates

Fig. 4. (a) Beam profiles under different output powers; (b) beam quality under different output powers; (c) output spectrum