Publication
We demonstrate 1.5 W of output power at the wavelength of 750 nm by intracavity frequency doubling a wafer-fused semiconductor disk laser diode-pumped at 980 nm. An optical-to-optical efficiency of 8.3% was achieved using a bismuth borate crystal. The wavelength of the doubled emission could be tuned from 720 to 764 nm with an intracavity birefringent plate. The beam quality parameter M-2 of the laser output was measured to be below 1.5 at all pump powers.
Tobias Kippenberg, Anat Siddharth
Christophe Marcel Georges Galland, Valeria Vento, Sachin Suresh Verlekar
Christophe Marcel Georges Galland, Valeria Vento, Sachin Suresh Verlekar, Philippe Andreas Rölli