Generation of 4.3-W coherent blue light by frequency-tripling of a side-pumped Nd:YAG laser in LBO crystals.
High average power nanosecond pulsed light is obtained using a compact all solid state Nd:YAG laser. The laser is operated in Q-switched mode at the 1.3 micron fundamental and internally frequency tripled using two LiB3O5 (LBO) crystals. 4.3 W average power at 440 nm was demonstrated at 3.5 kHz and a pulse width of 150+/-10 ns (FWHM). The beam quality of M2 value is 5+/-1 in both dimensions. The short-term average power stability of the light source is better than 5.6%. Spectral selecting is proposed to increase production efficiency at 440 nm.
Sun
Zhipei
Z
Li
Ruining
R
Bi
Yong
Y
Yang
Xiaodong
X
Bo
Yong
Y
Hou
Wei
W
Lin
Xuechun
X
Zhang
Hongbo
H
Cui
Dafu
D
Xu
Zuyan
Z