Abstract
We demonstrate a novel continuous-wave 2.1 μm Ho :GTO laser pumped by a laser diode. Employing a pump recycling scheme and 30% output transmittance, we obtain an output power of 4.76 W and a single oscillating peak of 2068.4 nm with a slope efficiency of 55.3% with respect to the absorbed pump power. In addition, the M2 factor of the Ho :GTO laser is reckoned to be approximately 1.3 at the maximum output power.
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Zhang, W., Li, L., Zhou, S. et al. Efficient Continuous-Wave Diode-Pumped Ho :GTO Laser with a Pump Recycling Scheme. J Russ Laser Res 41, 94–97 (2020). https://doi.org/10.1007/s10946-020-09852-2
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DOI: https://doi.org/10.1007/s10946-020-09852-2