Near-diffraction-limited green source by frequency doubling of a diode-stack pumped Q-switched Nd:YAG slab oscillator-amplifier system.
A near-diffraction-limited, stable, 18 mJ green source with a pulse width of 16.7 ns was generated at a 1 kHz repetition rate by frequency doubling of diode stacks end-pumped electro-optically Q-switched slab Nd:YAG oscillator-amplifier system. The pump to green optical conversion efficiency was 10.7%. At the output energy of 15 mJ at 532 nm, the M2 factors were 1.3 and 1.7 in the unstable and stable directions, respectively. The energy pulse stability was approximately 0.8%.
Zhang
Hengli
H
School of Information Science and Technology, Beijing Institute of Technology, China. zh1040325@sina.com
Liu
Xiaomeng
X
Li
Daijun
D
Shi
Peng
P
Schell
Alex
A
Haas
Claus Rüdige
CR
Du
Keming
K