Journal
OPTICS EXPRESS
Volume 27, Issue 8, Pages 11455-11461Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.27.011455
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Funding
- National Natural Science Foundation of China (NSFC) [51572053, 61674149, 61775053, U1530152]
- National Key Research and Development Program of China [2016YFB070100]
- Key Project of Jiangsu Province [BE2016090, BE2016005-2]
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In this paper, we demonstrate the continuous-wave and acousto-optical Q-switched performance of diode-pumped slab Ho:(Sc0.5Y0.5)(2)SiO5 (Ho:SYSO) laser at 2.1 mu m for the first time. Two 1.91-mu m laser diodes were used to pump the Ho:SYSO crystal. With a wing-pumping structure, at absorbed pump power of 44.7 W, the continuous wave slab Ho:SYSO laser produced 20.7 W maximum output power at 2097.9 nm, resulting in a slope efficiency of 53.1% with respect to the absorbed pump power. In the Q-switched regime, the slab Ho:SYSO laser produced up to 3.4 mJ pulse energy with 20 ns minimum pulse width at pulse repetition frequency of 5 kHz, corresponding to a peak power of 170 kW. (C) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
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