We present the diode pumping of a Nd:ASL (Sr1-xLax-yNdyMgxAl12-xO19) crystal for second harmonic generation at 453 nm. We have developed a high-brightness pump source based on a tapered amplifier in an extended cavity with a volume Bragg grating for wavelength stabilization. A pump brightness of 110 MW cm-2 sr-1 is obtained with a linewidth lower than 80 pm at 798 nm. This laser source is used to pump a Nd:ASL crystal to obtain 300 mW at 906 nm and 53 mW at 453 nm by intracavity doubling with a LBO crystal.
- blue laser
- laser emission
- diode pumping
Paboeuf, D., Lucas-Leclin, G., Georges, P., Sumpf, B., Erbert, G., Varona, C., Loiseau, P., Aka, G., & Ferrand, B. (2008). Blue laser emission by intracavity second harmonic generation in Nd:ASL pumped by a tapered amplifier laser diode stabilized by a volume Bragg grating. Applied Physics B: Lasers and Optics, 92(2), 189-193. https://doi.org/10.1007/s00340-008-3079-2