Single-mode near-infrared optical parametric oscillator amplifier based on periodically poled KTiOPO4.
A singly resonant, single-axial-mode, optical parametric oscillator (OPO) based on periodically poled KTiOPO4 (PPKTP) is reported. Signal (1.68 micron) and idler (2.90 micron) optical bandwidths have been narrowed to <400 MHz by use of a diffraction grating at grazing incidence. The OPO generates 370 microJ of signal radiation when pumped by 3.1 mJ of 1.064-micron radiation. We implemented a single-pass PPKTP amplifier to yield 2.15-mJ signal and 1.17-mJ idler radiation without broadening the spectral bandwidths.
Baxter
G W
GW
Department of Physics, University of Otago, P.O. Box 56, Dunedin, New Zealand.
Schlup
P
P
McKinnie
I T
IT
Hellström
J
J
Laurell
F
F