Abstract
We report on efficient laser operation of Yb:NaGd(WO4)2 (Yb:NGW) in thin disk laser configuration. Using doping concentrations of 10.7 at. % and 15.3 at. % and disk thicknesses between 0.1 mm and 0.4 mm the optimum crystal parameters have been determined. A 0.1 mm thick, 10.7 at. % Yb:NGW disk pumped at 975 nm delivered 18.2 W of output power at 43.6 W of incident pump power with a slope efficiency of 51% and a resulting optical-to-optical efficiency of 42%. Using a 2 mm thick birefringent filter, continuous tuning from 997 nm to 1075 nm has been achieved.
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42.55.Rz; 42.60.Lh; 42.70.Hj
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Peters, R., Kränkel, C., Petermann, K. et al. Power scaling potential of Yb:NGW in thin disk laser configuration. Appl. Phys. B 91, 25–28 (2008). https://doi.org/10.1007/s00340-008-2962-1
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DOI: https://doi.org/10.1007/s00340-008-2962-1