A passively mode-locked grown-together composite YVO<sub>4</sub>/Nd:YVO<sub>4</sub> crystal laser is demonstrated with a semiconductor saturable absorber mirror by 880-nm laser-diode direct pumping. Under the absorbed pump power of 24.9 W, a maximum output power of 10.5 W at the repetition rate of 77 MHz is obtained, corresponding to the optical-optical conversion efficiency of 42.1% and the slope efficiency of 53.4%. The pulse width measured is 33 ps at the output power of 10 W.
© 2011 Chinese Optics Letters
(140.3480) Lasers and laser optics : Lasers, diode-pumped
(140.3580) Lasers and laser optics : Lasers, solid-state
(140.4050) Lasers and laser optics : Mode-locked lasers
(160.3380) Materials : Laser materials
Fangqin Li, Nan Zong, Zhichao Wang, Lin Han, Yong Bo, Qinjun Peng, Dafu Cui, and Zuyan Xu, "Passively mode-locked grown-together composite YVO4/Nd:YVO4 crystal laser with a semiconductor saturable absorber mirror under 880-nm direct pumping," Chin. Opt. Lett. 9, 041405- (2011)