Diode-pumped Pr(3+):KY(3)F(10) red laser.
We report the first observation to our knowledge of room-temperature continuous-wave laser operation of a Pr(3+):KY(3)F(10) single crystal at 644.5 nm, pumped by a blue GaN laser diode emitting at 446 nm. With a 2.5% transmission output coupler and a nonoptimized optical cavity, an output power of 39 mW was obtained at 644.5 nm with a laser threshold of 125 mW and a differential slope efficiency of 23%.
Camy
P
P
Centre Interdisciplinaire de Recherches sur les ions et les Lasers, UMR 6637 CEA-CNRS-ISMRA, Université de Caen, Caen, France. patrice.camy@ensicaen.fr
Doualan
J L
JL
Moncorgé
R
R
Bengoechea
J
J
Weichmann
U
U