A solid-state laser based on yttrium-stabilized zirconia crystals (86 mol% ZrO 2 -13.6 mol% Y 2 O 3 -0.4 mol% Ho 2 O 3 ) and pumped by a thulium fiber laser at a wavelength of 1907 nm was developed. The maximum output power of 8.8 W was achieved, with a slope efficiency of 46% for continuous-wave operation. 2 µm Q-switched operation of the laser at repetition rates of 1 kHz and 10 kHz was demonstrated.
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