High-energy Q-switched 120 mJ Ho:YAG lasers at 500 Hz repetition rate

Viktor Smolski,Igor Moskalev,Sergey Vasilyev,Jeremy Peppers,Mike Mirov,Vladimir Fedorov,Dmitry Martyshkin,Sergey Mirov

LASER TECHNOLOGY FOR DEFENSE AND SECURITY XVII（2022）

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Abstract

We present recent results on high energy, high repetition rate 2090 nm Ho:YAG laser system resonantly pumped by the radiation of efficient Tm-doped CW fiber lasers. The laser consists of a master oscillator power amplifier (MOPA) with two additional amplification stages. We demonstrate maximum energy of 120 mJ per pulse with a 15 ns pulse width at 500 Hz, corresponding to a peak power of 8 MW. The results presented in a wide 100-1000 Hz range of repetition rates.

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Key words

Laser, solid-state lasers, Ho:YAG

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