Continuous-wave and femtosecond laser operation of Yb:CaGdAlO4 under high-power diode pumping.
We demonstrate the generation of 68 fs secant hyperbolic pulses at a 105 MHz repetition rate with an average power of 520 mW from a diode-pumped Yb(3+):CaGdAlO(4) mode-locked laser. A semiconductor saturable absorber allows passive mode locking, and a 15 W diode laser is used to pump directly the crystal. To our knowledge this represents the highest average power ever obtained for a sub-100 fs diode-pumped Yb-bulk laser.
Boudeile
J
J
Laboratoire Charles Fabry de I'Institut d'Optique, CNRS, Univ Paris-Sud, Campus Polytechnique, 91127 Palaiseau Cedex, France. justine.boudeile@institutoptique.fr
Druon
F
F
Hanna
M
M
Georges
P
P
Zaouter
Y
Y
Cormier
E
E
Petit
J
J
Goldner
P
P
Viana
B
B