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5 March 2021 Gain switched Fe:ZnSe hot-pressed ceramic laser
Krishna Karki, Shengquan Yu, Vladimir Fedorov, Yiquan Wu, Sergey Mirov
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Proceedings Volume 11664, Solid State Lasers XXX: Technology and Devices; 116640E (2021) https://doi.org/10.1117/12.2583153
Event: SPIE LASE, 2021, Online Only
Abstract
We report the first room temperature gain switched Fe:ZnSe hot-pressed ceramic laser pumped by 2.94 μm radiation of mechanically Q-switched Er:YAG laser. The maximum output energy was obtained to be 2.5 mJ at 32 mJ of pump energy. The measured slope efficiency was 8% with respect to the pump energy. In this experiment, 3.2 mm hot-pressed Fe:ZnSe ceramic sample was used which had 6% active transmission at the pump wavelength. By using absorption cross-section, the concentration of Fe2+ ions was calculated to be N=9*10^18 cm-3.
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Krishna Karki, Shengquan Yu, Vladimir Fedorov, Yiquan Wu, and Sergey Mirov "Gain switched Fe:ZnSe hot-pressed ceramic laser", Proc. SPIE 11664, Solid State Lasers XXX: Technology and Devices, 116640E (5 March 2021); https://doi.org/10.1117/12.2583153
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KEYWORDS
Ceramics
Crystals
Er:YAG lasers
Laser crystals
Mirrors
Output couplers
Plasma
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