NEAR-DIFFRACTION-LIMITED, HIGH-ENERGY, HIGH-POWER, DIODE-PUMPED LASER USING THERMAL ABERRATION CORRECTION WITH ASPHERIC DIAMOND-TURNED OPTICS

摘要

We achieved a 1.3 x diffraction-limited output beam with a pulse energy of 0.76 J at 60 Hz (average power of 46 W) at 1.064 mu m from a diode-pumped Nd:YAG master oscillator power amplifier rod laser using a diamond-turned aspheric optic to compensate thermally induced phase distortion of the gain medium. The output was frequency doubled in KTP to 30 W (0.5-5 pulse energy) and 2.4 x diffraction-limited at 532 nm. (C) 1996 Optical Society of America [References: 17]