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arXiv · 2503.14033

Energy scaling of Kerr-lens modelocked Ho:YAG thin-disk oscillators to the microjoule level

Sergei Tomilov·Mykyta Redkin·Yicheng Wang·Anna Suzuki·Martin Hoffmann·Clara J. Saraceno
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Abstract

We demonstrate peak power and pulse energy scaling of Kerr-lens modelocking (KLM) Ho:YAG thin-disk lasers (TDLs) emitting at 2.1-{\mu}m wavelength. We compare different laser configurations to reach a maximum pulse energy of 1.7 {\mu}J at an output power of 29 W with a pulse duration of 434 fs, corresponding to a peak power of 3.7 MW. This represents a 5-fold increase in pulse energy and 4-fold increase in peak power compared to previous KLM Ho:YAG TDLs, thus reaching record high peak power for 2.1-{\mu}m mode-locked oscillators. We discuss current limitations at this wavelength and guidelines for future work towards higher power and pulse energies.

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Sergei Tomilov, Mykyta Redkin, Yicheng Wang, Anna Suzuki, Martin Hoffmann, Clara J. Saraceno. 2025-03-18. Energy scaling of Kerr-lens modelocked Ho:YAG thin-disk oscillators to the microjoule level. https://doi.org/10.1364/oe.561436

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