• High Power Laser Science and Engineering
  • Vol. 13, Issue 2, 02000e23 (2025)
Yanran Gu1,2, Xinyue Niu1,2, Fuyin Liu1,2, Ting He1,2..., Jinmei Yao1,2, Muyu Yi1,2, Langning Wang1,2, Tao Xun1,2,* and Jinliang Liu1,2|Show fewer author(s)
Author Affiliations
  • 1College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha, China
  • 2Nanhu Laser Laboratory, National University of Defense Technology, Changsha, China
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    DOI: 10.1017/hpl.2025.8 Cite this Article Set citation alerts
    Yanran Gu, Xinyue Niu, Fuyin Liu, Ting He, Jinmei Yao, Muyu Yi, Langning Wang, Tao Xun, Jinliang Liu, "High-power microsecond ultraviolet burst-mode pulse laser with a rectangular envelope and GHz-adjustable intra-burst pulses," High Power Laser Sci. Eng. 13, 02000e23 (2025) Copy Citation Text show less
    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. 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.
    (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. 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.
    (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. 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.
    (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. 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.
    (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. 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.
    (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.
    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.
    Yanran Gu, Xinyue Niu, Fuyin Liu, Ting He, Jinmei Yao, Muyu Yi, Langning Wang, Tao Xun, Jinliang Liu, "High-power microsecond ultraviolet burst-mode pulse laser with a rectangular envelope and GHz-adjustable intra-burst pulses," High Power Laser Sci. Eng. 13, 02000e23 (2025)
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