High efficiency 165 W near-diffraction-limited Nd:YVO(4) slab oscillator pumped at 880 nm.
We demonstrate a compact, efficient Nd:YVO(4) stable-unstable hybrid slab oscillator that was partially end pumped at 880 nm. A maximum output power of 165 W at 1064 nm was obtained with an optical-to-optical efficiency from absorbed pump power to laser output of up to 60% and a slope efficiency of up to 66%. The beam propagation factors M(2) were 1.7 in the stable direction and 1.4 in the unstable direction without sidelobes.
Zhu
Peng
P
Department of Physics, Tsinghua University, Beijing, China. zhu-p05@mail.thu.edu.cn
Li
Daijun
D
Hu
Peixin
P
Schell
Alexander
A
Shi
Peng
P
Haas
Claus R
CR
Wu
Nianle
N
Du
Keming
K