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15 May 2012 A highly efficient resonantly pumped Ho:YAG laser
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An efficient high-peak-power Ho:YAG hybrid laser resonantly pumped by a 20 W linearly polarized Tm:fiber laser at the wavelength of 1908 nm was developed. At room temperature a maximum continuous output power of 10.7 W with a slope efficiency of over 55% with respect to the incident pump power was achieved. In Q-switching regime an acousto-optic modulators were applied. The research was conducted for normal and Brewster's angle Q-switches respectively. In CW pumping regime the repetition rate was changed from 500 Hz to 5000 Hz. For the best case, for 5 kHz repetition rate, pulses of 1.6 mJ energy and 123 kW peak-power were achieved at the wavelength of 2090.2 nm with an M2 ≈ 1.6.
© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jacek Kwiatkowski, Jan K. Jabczynski, Waldemar Zendzian, Jacek Swiderski, Mateusz Kaskow, and Lukasz Gorajek "A highly efficient resonantly pumped Ho:YAG laser", Proc. SPIE 8433, Laser Sources and Applications, 84331J (15 May 2012);


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