Abstract
We report on efficient repetitively Q-switched laser operation of a miniature Yb:LuPO4 crystal rod with emission wavelengths ranging from 1000 to 1010 nm, at different repetition rates over a range of 1−50 kHz. An average output power of 6.55 W was produced at 50 kHz of repetition rate, with a slope efficiency of 40%; in a low-repetition-rate operation at 2 kHz, the maximum pulsed output power generated was 1.43 W, with pulse energy, duration, and peak power being, respectively, 0.715 mJ, 12.5 ns, and 57.2 kW.
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