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Demonstration of a compact, multi-joule, diode-pumped Tm:YLF laser

Abstract

We report the demonstration of a diode-pumped Tm:YLF laser operating at 1.88 µm 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.

© 2021 Optical Society of America

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Data Availability

Data underlying the results presented in this Letter are not publicly available at this time, but may be obtained from the authors upon reasonable request.

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