1319 nm and 1338 nm dual-wavelength operation of LD end-pumped Nd:YAG ceramic laser.
In this paper, we demonstrate the efficient 1.3 um dual-wavelength operation of LD end-pumped Nd:YAG ceramic laser. With a plano-concave cavity, a maximum continuous-wave dual-wavelength output power of 5.92 W is obtained under an incident pump power of 20.5 W, giving a slope efficiency of 30.3% and an optical-optical conversion efficiency of 29.0%. With Co(2+):LaMgAl(11)O(19) crystal as the saturable absorber, the passively Q-switched dual-wavelength operation is achieved for the first time to our knowledge. The maximum passively Q-switched average output power is 226 mW, the minimum pulse width is 15 ns, and the highest pulse repetition rate is 133 kHz.
Guo
Lei
L
State Key Laboratory of Crystal Materials and Institute of Crystal Materials, Shandong University, Jinan 250100, China.
Lan
Ruijun
R
Liu
Hong
H
Yu
Haohai
H
Zhang
Huaijin
H
Wang
Jiyang
J
Hu
Dawei
D
Zhuang
Shidong
S
Chen
Lijuan
L
Zhao
Yongguang
Y
Xu
Xinguang
X
Wang
Zhengping
Z