Efficient diode-end-pumped actively Q-switched Nd:YAG/SrWO4/KTP yellow laser.
An efficient intracavity frequency-doubled Raman laser was obtained by using an SrWO(4) Raman medium, an Nd:YAG ceramic gain medium, and a KTP frequency-doubling medium. Three laser cavities, including a two-mirror cavity, a three-mirror coupled cavity, and a folded cavity, were investigated. With the coupled cavity, a 2.93 W, 590 nm laser was obtained at an incident pump power of 16.2 W and a pulse repetition frequency of 20 kHz; the corresponding conversion efficiency was 18.1%. The highest conversion efficiency of 19.2% was obtained at an incident pump power of 14.1 W and a pulse repetition frequency of 15 kHz. The obtained maximum output power and conversion efficiency were much higher than the results previously obtained with intracavity frequency-doubled solid-state Raman lasers.
Cong
Zhenhua
Z
School of Information Science and Engineering, Shandong University, Jinan, 250100, China.
Zhang
Xingyu
X
Wang
Qingpu
Q
Liu
Zhaojun
Z
Li
Shutao
S
Chen
Xiaohan
X
Zhang
Xiaolei
X
Fan
Shuzhen
S
Zhang
Huaijin
H
Tao
Xutang
X