Spectroscopy and diode-pumped laser operation of Pr:LaMgAl11O19 crystal

Abstract We report on the growth, spectroscopic properties and visible laser operation of Pr 3+ -doped LaMgAl 11 O 19 (LMA) crystal. The absorption and emission spectra were recorded in visible wavelength range and the decay time of 3 P 0 manifold was measured to be about 34.5 μs at room temperature. Using an InGaN laser diode as pump source, continuous-wave laser operation of Pr:LMA crystal have also been demonstrated in red at about 645 nm and deep red at about 725 nm, which provide new linearly polarized sources for various potential applications.