Journal
OPTICS LETTERS
Volume 46, Issue 20, Pages 5096-5099Publisher
OPTICAL SOC AMER
DOI: 10.1364/OL.439238
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Funding
- U.S. Department of Energy [DE-AC52-07NA27344]
- Lawrence Livermore National Laboratory-Laboratory Directed Research andDevelopment (LLNL-LDRD) Program [19-DR-009]
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This study demonstrates the high pulse energy generation capability of a diode-pumped Tm:YLF laser at 1.88 μm wavelength, opening new research paths for mid-infrared solid-state lasers.
We report the demonstration of a diode-pumped Tm:YLF laser operating at 1.88 mu m that produces pulse energies up to 3.88 J in 20 ns. The compact system consists of a Q-switched cavity-dumped oscillator generating 18 mJ pulses, which are then amplified in a four-pass power amplifier. Energies up to 38.1 J were obtained with long-pulse amplifier operation. These results illustrate the high energy storage and extraction capabilities of diode-pumped Tm:YLF, opening the path to high peak and average power mid-infrared solid-state lasers. (C) 2021 Optical Society of America
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