4-ps passively mode-locked Nd:Gd0.5Y0.5VO4 laser with a semiconductor saturable-absorber mirror.
We have demonstrated a passively mode-locked diode end-pumped all-solid-state laser, which is composed of a Nd:Gd0.5Y0.5VO4 crystal and a folded cavity with a semiconductor saturable-absorber mirror grown by metal-organic chemical-vapor deposition. Stable cw mode locking with a 3.8-ps pulse duration at a repetition rate of 112 MHz was obtained. At 13.6 W of the incident pump power, a clean mode-locked fundamental-mode average output power of 3.9 W was achieved with an overall optical-to-optical efficiency of 29.0%, and the slope efficiency was 38.1%.
He
Jing-Liang
JL
National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, China.
Fan
Ya-Xian
YX
Du
Juan
J
Wang
Yong-Gang
YG
Liu
Sheng
S
Wang
Hui-Tian
HT
Zhang
Lian-Han
LH
Hang
Yin
Y