Abstract
We report diode end-pumped continuous-wave Tm:YAlO3 slab lasers with high power and high efficiency. At room temperature, b-cut Tm:YAlO3 slabs with doping concentrations of 1, 4 and 5 at.% pumped by fiber-coupled and fast-axis collimated laser diodes with different wavelengths are compared. Tm:YAlO3 slab lasers of 4 at.% doping concentrations have the highest optical-to-optical efficiency. When pumped with fiber-coupled and fast-axis collimated laser diodes, the maximum output powers are 11 W and 15 W, corresponding to a slope efficiency of 52% and 40%, respectively.
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Cheng, X., Chen, F., Zhao, G. et al. High-efficiency, high-power, diode-pumped continuous-wave Tm:YAlO3 slab lasers. Appl. Phys. B 97, 639–643 (2009). https://doi.org/10.1007/s00340-009-3755-x
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DOI: https://doi.org/10.1007/s00340-009-3755-x