Stable pulse-compressed acousto-optic Q-switched fiber laser.
A novel acousto-optic switch operation by a simple laser-diode pumped acousto-optic, Q-switched, ytterbium-doped, double-clad fiber laser is reported. Stable compressed Q-switched sub-40 ns pulses with a beam quality factor (M(2)=2) are achieved at the repetition rate of 1-50 kHz. Q-switched pulses of ~20 microJ pulse energy and 35 ns pulse width are obtained at the repetition rate of 50 kHz. Finally, a reasonable explanation of the novel Q-switched operation is presented.
Zhao
Hongming
H
Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai, China.
Lou
Qihong
Q
Zhou
Jun
J
Zhang
Fangpei
F
Dong
Jingxing
J
Wei
Yunrong
Y
Wang
Zhijiang
Z