Second-Stokes YVO4/Nd:YVO4/YVO4 self-frequency Raman laser.
We demonstrated an efficient second-Stokes Raman laser emission at 1313 nm based on self-frequency stimulated Raman scattering from a diode-end-pumped actively Q-switched YVO(4)/Nd:YVO(4)/YVO(4) laser at 1064 nm for the first time, to the authors' knowledge. A double-end diffusion-bonded Nd:YVO(4) composite crystal was adopted for sufficiently improving the thermal lensing effect in the course of self-frequency stimulated Raman scattering operation. With an incident pump power of 14.6 W and a pulse repetition (PRR) of 40 kHz, a maximum average output power of 2.34 W was obtained, corresponding to an optical-to-optical conversion efficiency of 16%. Pulse width and peak power were 1.2 ns and 49 kW, respectively.
Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China. chenweidong@fjirsm.ac.cn
Weidong
W
Chen
Yong
Y
Wei
Chenghui
C
Huang
Xiaolei
X
Wang
Hongyuan
H
Shen
Suya
S
Zhai
Shan
S
Xu
Bingxuan
B
Li
Zhenqiang
Z
Chen
Ge
G
Zhang