We report a regenerative amplifier based on an Yb-doped apatite crystal: Yb3+: SrY4(SiO4) 3O (Yb:SYS). We obtained 420-fs pulses at a central wavelength of 1066 nm with an energy of 100μJ at 300 Hz after compression. To the best of our knowledge, this system is the first regenerative amplifier based on an Yb:SYS crystal and provides duration among the shortest ones generated by a directly diode-pumped regenerative amplifier.
© 2003 Optical Society of America
(140.3070) Lasers and laser optics : Infrared and far-infrared lasers
(140.3480) Lasers and laser optics : Lasers, diode-pumped
(140.4050) Lasers and laser optics : Mode-locked lasers
(140.5680) Lasers and laser optics : Rare earth and transition metal solid-state lasers
Pierre Raybaut, Frederic Druon, Francois Balembois, Patrick Georges, Romain Gaumé, Bruno Viana, and Daniel Vivien, "Directly diode-pumped Yb3+:SrY4(SiO4)3O regenerative amplifier," Opt. Lett. 28, 2195-2197 (2003)