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arXiv · 2601.19760

6-mJ, 4-ns Pulse Generation at 2.09 $\mu$m from a Diode-Pumped Ho:YAG Thin-Disk Laser

Y. Koshiba·J. Mužík·M. Smrž·M. Dvořák·S. Kudělková·A. Fajstavr·Tomáš Mocek
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Abstract

A holmium-doped yttrium aluminum garnet (Ho:YAG) thin-disk was experimentally investigated under Q-switching and cavity-dumping operation schemes, pumped by a 1.9 $\mu$m laser-diode (LD). The laser generated pulses at 2090 nm with energies more than 6 mJ and pulse duration down to 3.8 ns, corresponding to a peak power of 1.6 MW with near-diffraction-limited beam quality. The compact and robust system was used for laser-induced breakdown spectroscopy (LIBS) experiments, demonstrating its practical usability. These results represent, to the best of our knowledge, the first demonstration of a Ho:YAG thin-disk laser providing MW peak-power in nanosecond regime.

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Y. Koshiba, J. Mužík, M. Smrž, M. Dvořák, S. Kudělková, A. Fajstavr, Tomáš Mocek. 2026-01-27. 6-mJ, 4-ns Pulse Generation at 2.09 $\mu$m from a Diode-Pumped Ho:YAG Thin-Disk Laser. https://arxiv.org/abs/2601.19760

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