Title :
One watt average power by second harmonic and sum frequency generation from a single medium scale copper vapor laser
Author :
Coutts, D.W. ; Piper, J.A.
Author_Institution :
Centre for Lasers & Applications, Macquarie Univ., NSW, Australia
fDate :
8/1/1992 12:00:00 AM
Abstract :
Ultraviolet (UV) powers of over 1 W have been obtained by second harmonic and sum frequency generation from a single medium scale (20 W) copper vapor laser (CVL) using a new focal geometry in which the CVL beam is focused in only one direction to produce a line focus within a BBO crystal. High optical conversion efficiencies, 20 and 30%, are observed for the low divergence (~-10 times the diffraction limit) and diffraction-limited components of the CVL output, respectively. Wall-plug efficiencies for UV generation are up to 0.04%. Efficient frequency conversion has also been demonstrated for CVL operating conditions unsuited to the generation of diffraction limited output
Keywords :
barium compounds; copper; gas lasers; laser beams; optical harmonic generation; optical materials; 0.04 percent; 1 W; 20 W; 20 percent; 30 percent; BaB2O4; CVL beam; Cu vapour laser; SHG; UV generation; average power; diffraction limit; diffraction-limited components; focal geometry; focused; frequency conversion; line focus; low divergence; optical conversion efficiencies; second harmonic generation; single medium scale; sum frequency generation; wall-plug efficiencies; Copper; Frequency conversion; Geometrical optics; Laser beams; Nonlinear optics; Optical diffraction; Optical harmonic generation; Power generation; Power lasers; Power system harmonics;
Journal_Title :
Quantum Electronics, IEEE Journal of
