Fig. 1. Schematic diagram of the high-power UV burst-mode pulse laser system. CW, continuous-wave; DFB, distributed feedback laser; EOM, electro-optic modulator; SG, signal generator; OC, optical coupler; AOM, acousto-optic modulator; YDFA, ytterbium-doped fiber amplifier; AWG, arbitrary waveform generator; M1–M8, mirrors 1–8; QWP, quarter-wave plate; PBS, polarization beam splitter; Amp, Nd:YAG amplifier.

Fig. 2. (a) The intra-burst pulse shape of the 1 GHz sine wave. (b) The AWG-1 pulse signal of 10 kHz/1 μs and the chopped pulse train of the microsecond burst-mode laser seed. (c) The AWG-2 pre-compensation signal waveform and the pre-compensated temporal shape of the burst-mode seed. (d) The spectrum of the burst-mode fiber seed.

Fig. 3. (a) Nd:YAG amplifiers vary in energy at different amplifiers. (b) Temporal waveform evolution of the burst-mode pulse laser at different energy values.

Fig. 4. (a) The energy stability of the UV laser is assessed over a 10-minute interval. (b) The spectrum of the UV burst-mode laser at maximum output energy.

Fig. 5. (a) The spatial profile of the UV burst-mode laser at 152 mJ (over 300 kW peak power). (b) The temporal waveform of the UV burst-mode laser at 152 mJ.

Fig. 6. (a) The UV burst-mode laser features an intra-burst pulse frequency that is adjustable across the 1–10 GHz spectrum. (b) The sinusoidal intra-burst pulse train at various intra-burst frequencies of 1–10 GHz. (c) The output energy at different intra-burst frequencies of 1–10 GHz.