Open AccessA 22-watt mid-infrared optical parametric oscillator with V-shaped 3-mirror ring resonator
Author(s) -
E. Lippert,
Helge Fonnum,
Gunnar Arisholm,
Knut Stenersen
Publication year - 2010
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.18.026475
Subject(s) - optical parametric oscillator , optics , resonator , laser beam quality , laser , beam (structure) , nonlinear optics , materials science , watt , q factor , power (physics) , physics , optoelectronics , laser beams , quantum mechanics
We report on a ZnGeP(2)-based optical parametric oscillator (OPO) with 22 W of output power in the 3-5 µm range and a beam quality factor M(2) ≈1.4. The OPO uses a novel V-shaped 3-mirror ring resonator that allows two passes of the beams through the same nonlinear crystal. The pump is a 39 W hybrid Tm:fiber laser/Ho:YAG laser.