20 May 2015 20.2W CW 2.118μm Ho:YAlO3 laser pumped by 1.915nm Tm-doped fiber laser
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Abstract
We report on the continuous wave operation of a Ho:YAP laser pumped by an all-fiber Tm-doped fiber laser, the pump laser wavelength is 1.915μm and the output laser wavelength is 2.118μm. The all fiber Tm-doped fiber laser has 70W max output power with 200W pumped power, and the output laser wavelength is 1.915μm. And this laser is used as pump laser to a Ho:YAP laser system. 20.2W CW laser power is obtained from a 0.5 at % Ho3+-doped YAP crystal at 2118.4nm with slope efficiency of 72%.
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Ting Yu, Gang Bai, Zhongguo Yang, Weibiao Chen, "20.2W CW 2.118μm Ho:YAlO3 laser pumped by 1.915nm Tm-doped fiber laser", Proc. SPIE 9466, Laser Technology for Defense and Security XI, 94660U (20 May 2015); doi: 10.1117/12.2177643; https://doi.org/10.1117/12.2177643
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