Crystal growth, spectroscopy and laser performances of Pr³⁺:Sr_0.7La_0.3Mg_0.3Al_11.7O₁₉ (Pr:ASL)

We report on the crystal growth, spectroscopic properties and visible laser performances of Pr³⁺-doped Sr_0.7La_0.3Mg_0.3Al_11.7O₁₉ (ASL). ASL crystals doped with 2 at.% and 4 at.% Pr³⁺ were grown by Czochralski method. The laser experiments were carried out in a plane-concave resonator under excitation at 486 nm, provided from a 2ω-OPSL. Efficient laser emission was obtained with an 8 mm long sample of Pr(2at.%):ASL. The maximum output power amounted to 267 mW, 52 mW, and 318 mW at an absorbed power of 1.2W for red, orange, and deep red emission, respectively.