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Pump wavelengths for an Er:YLiF4 green-emitting laser

Domenii publicaţii > Fizica + Tipuri publicaţii > Articol în revistã ştiinţificã

Autori: O. Toma, E. Osiac, S. Georgescu

Editorial: Optical Materials, 30, p.181-183, 2007.

Rezumat:

We investigate the emission regimes of a room-temperature Er(1%):YLiF4 laser on the transition 4S3/2 – 4I15/2 using a model based on rate equations. The influence of the excited-state reabsorption losses and of the pump wavelength on the laser emission regime is discussed. Three pump wavelengths are investigated: 486 nm (direct pumping), 795 nm and 810 nm (both corresponding to upconversion pumping). The emission thresholds of the various regimes are determined.

Cuvinte cheie: Laseri pompati prin conversie superioara // Upconversion laser, Erbium