Multiwatt mid-IR output from a Nd:YALO laser pumped intracavity KTA OPO.
We have achieved 4.1W of 3.5-micron output from a non-critically phasematched (NCPM), type II, KTiOAsO4 (KTA) optical parametric oscillator (OPO) pumped within the cavity of a Q-switched diode-pumped Nd: YALO laser operating at 10kHz. We adopted the simplest configuration with a compact diode-pumped Nd: YALO module pumping the singly resonant KTA OPO. Besides 4.1W of 3.5um, 10.9W of 1.5 micron and 11.3W of 1-micron radiation were obtained simultaneously.
R F
RF
Wu
K S
KS
Lai
H
H
Wong
W J
WJ
Xie
Y
Y
Lim
E
E
Lau