Visible laser operation of Pr3+-doped fluoride crystals pumped by a 469 nm blue laser.
We report continuous-wave (CW) laser operation of Pr3+-doped LiLuY4, LiYF4 and KY3F10 single crystals in the Red, Orange and Green spectral regions by using a new pumping scheme. The pump source is an especially developed compact, slightly tunable and intracavity frequency-doubled diode-pumped Nd:YAG laser delivering a CW output power of 0.9W at 469.12 nm. At this pump wavelength, efficient room temperature laser emissions corresponding to the 3P0→3F2, 3P0→3H6 and 3P1→3H5 Pr3+ transitions are observed. While a maximum slope efficiency of 45% is obtained in the red with Pr:LiYF4, the demonstration is made for the first time of the orange laser operation of Pr:KY3F10 at about 610 nm.
Centre de Recherche sur les Ions, les Matériaux et la Photonique (CIMAP) UMR CEA-CNRS-ENSICaen, Université de Caen, Caen, France.
Bin
B
Xu
Patrice
P
Camy
Jean-Louis
JL
Doualan
Zhiping
Z
Cai
Richard
R
Moncorgé
D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D053844:Lasers, Solid-State