Comparative optical study of thulium-doped YAlO3 and GdVO4 single crystals

Absorption and emission spectra of Tm3+ in YAlO3 and GdVO4 single crystals are reported and analyzed. Lifetimes of 1G4 (22 μs) 3F4 (5.1 ms) states in YAlO3 and 1G4 (16 μs) 3F4 (2.3 ms) states in GdVO4 are measured, Fluorescence decay curves of blue and infrared emissions are also been given. In addition, widely tunable laser performances of Tm:YAlO3 and Tm:GdVO4 lasers are demonstrated.

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