Singly resonant optical parametric oscillator in periodically poled KTiOPO(4) pumped by a Bessel beam.
Conical pumping was used in a periodically poled KTiOPO(4) optical parametric oscillator for singly resonant idler generation in a nearly diffraction-limited axial beam. A single signal-idler pair was generated over the whole tuning range by use of asymmetric reflectivity of the OPO mirrors. Pump depletion of 40% and total conversion efficiency of 27% were obtained. Additional OPO tuning capability was demonstrated by adjustment of the angle of the conical pump beam.
V
V
Pasiskevicius
H
H
Karlsson
J A
JA
Tellefsen
F
F
Laurell
R
R
Butkus
A
A
Piskarskas
V
V
Smilgevi Ius
A
A
Stabinis