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27 February 2009 10-watt room-temperature Er-fiber-laser-pumped pure CW polycrystalline Cr2+:ZnS laser
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Abstract
We demonstrate, for the first time, room-temperature, 10 W (at 2400 nm), Er-fiber laser pumped, pure CW, thermally diffusion doped, polycrystalline Cr2+:ZnS laser. We also show Littrow-grating, single-knob, wavelength tuning of the laser over 1940-2780 nm with the maximum output power of 7.4 W at 2400 nm and above 2 W over 1970-2760 nm wavelength range. The laser performs with 40% real optical efficiency (with 43% slope) and shows no output power roll-off up to the highest available pump of 26 W.
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I. S. Moskalev, V. V. Fedorov, and S. B. Mirov "10-watt room-temperature Er-fiber-laser-pumped pure CW polycrystalline Cr2+:ZnS laser", Proc. SPIE 7193, Solid State Lasers XVIII: Technology and Devices, 71931J (27 February 2009); https://doi.org/10.1117/12.809622
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