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The performance of laser‐diode end‐pumped Yb:LuAG microchip lasers has been investigated at ambient temperature without active cooling of the gain media. Efficient laser oscillation of Yb:LuAG crystals with different thickness and output couplings was achieved at 1030 and 1047 nm with slope efficiencies of 72 and 54%, correspondingly. The thermal population distribution at the terminated laser level...
Optical properties of Yb:Y3Sc2Al3O12 crystal were investigated and compared with those from Yb:YAG crystals. Laser-diode pumped continuous-wave and passively Q-switched Yb:Y3Sc2Al3O12 lasers with Cr4+:YAG crystal as saturable absorber has been demonstrated for the first time.
The microchip laser performance of Yb:YAG crystals doped with different ytterbium concentrations (10, 15, and 20 at.%) has been investigated at ambient temperature. Efficient laser oscillation for 1-mm-thick YAG doped with 10 at.% Yb3+ ions was achieved at 1030 and 1049 nm with slope efficiencies of 85 and 81%, correspondingly.
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