Abstract
High-aspect-ratio ridge waveguides (propagation losses: 0.13±0.05 dB/cm) were fabricated in Yb3+:CaF2 by diamond-saw-dicing. The waveguide laser generated 723 mW at 1029-1051 nm with a slope efficiency of 76.0%; wavelength tuning between 1009-1072 nm was achieved.
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