Abstract
We report for the first time an efficient continuous wave Ho:LSO laser double-pass pumped by a Tm fiber laser. We achieve a maximum output power equal to 3.6 W at an absorbed pump power of 10.5 W, which corresponds to an optical-to-optical conversion efficiency of 34.3% and a slope efficiency of 59.3%. The output laser wavelength is centered at 2,105.1 nm with a linewidth of ≈2.2 nm, and the beam quality factors \( {\mathrm{M}}_x^2 \) = 1.2 and \( {\mathrm{M}}_y^2 \) = 1.1 measured by the 90/10 knife-edge method.
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Qin, H. An Efficient Continuous Wave Ho:LSO Laser Double-Pass Pumped by a Linewidth-Narrowed Tm Fiber Laser. J Russ Laser Res 38, 301–304 (2017). https://doi.org/10.1007/s10946-017-9645-5
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DOI: https://doi.org/10.1007/s10946-017-9645-5