Title :
A 1.4-kJ solid-state power oscillator with good beam quality
Author :
Albrecht, Georg F. ; Comaskey, Brian ; Furu, Lawrence
Author_Institution :
Lawrence Livermore Nat. Lab., CA, USA
fDate :
1/1/1995 12:00:00 AM
Abstract :
By using three 6-disk amplifiers of 10 cm clear aperture from the Nova laser as the active element in an unstable resonator of magnification M=3, we achieved a single shot output of 1.4 kJ in a beam which contains 90% of its energy within twice the theoretical beam divergence. We show that most of the beam quality degradation comes from about one wave of beam tilt during the pulse and that the tilt corrected beam quality corresponds to a Strehl ratio of ≈0.6
Keywords :
laser beams; laser cavity resonators; laser stability; refractive index; solid lasers; 1.4 kJ; 10 cm; 6-disk amplifiers; Nova laser; Strehl ratio; active element; beam quality degradation; beam tilt; clear aperture; energy; good beam quality; magnification; one wave; pulse; single shot output; solid-state power oscillator; theoretical beam divergence; tilt corrected beam quality; unstable resonator; Apertures; Laser beams; Optical pumping; Optical refraction; Optical variables control; Oscillators; Pulse amplifiers; Refractive index; Solid lasers; Solid state circuits;
Journal_Title :
Quantum Electronics, IEEE Journal of
