Diode end-pumped high-power Q-switched double Nd:YAG slab laser and its efficient near-field second-harmonic generation.
We reported on an all-solid-state double Nd:YAG slab laser. The laser was based on two diode end-pumped Nd:YAG slabs and a stable-unstable hybrid resonator. A cw output of 189 W and an average Q-switched output of 169 W at 10 kHz with an M(2) factor of 1.5 in the slow direction and 1.7 in the fast direction were obtained. We demonstrated efficient near-field frequency doubling by imaging the one-dimensional top-hat near-field to a lithium triborate frequency doubler. We obtained 93 W green light at 10 kHz with a pulse width of 10.7 ns. The efficiency of second-harmonic generation was up to 57%.
Zhu
Peng
P
Department of Physics, Tsinghua University, Beijing, China. zhu-p05@mails.thu.edu.cn
Li
Daijun
D
Qi
Bingsong
B
Schell
Alexander
A
Shi
Peng
P
Haas
Claus
C
Fu
Shaojun
S
Wu
Nianle
N
Du
Keming
K
D000669:Amplifiers, Electronic; D004867:Equipment Design; D019544:Equipment Failure Analysis; D054023:Lasers, Semiconductor; D009354:Neodymium; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*
D009354:Neodymium