Abstract

This paper presents a short pulse-width gain-switched Ho:YAG ceramic laser at 2089 nm resonantly pumped by a homemade $Q$-switched Tm:fiber laser at $\sim 1908\mathrm{nm}$. We generated stable pulses of 44–103 ns duration and 0.13–2 kW peak power at 20 kHz of pulse repetition frequency when the incident pump pulse energy increased from $\sim 0.1$ to 0.3 mJ. We also obtained an average output power of 1.76 W under an incident pump power of 6 W, corresponding to a slope efficiency of 41.8%. Finally, this paper discusses the prospects to further improve the results with even a shorter pulse-width and higher peak power.

© 2016 Optical Society of America

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