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High-energy, high-efficiency harmonic generation from a Cr:LiSrAlF6 laser system

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Abstract

We have developed a near-diffraction-limited Q-switched Cr:LiSrAlF6 (Cr:LiSAF) laser system capable of producing 860-nm, 400-mJ pulses at a repetition rate of 2 Hz. Our harmonic-generation experiments with β-BaB2O4 nonlinear crystals have yielded 200 mJ of energy at 430 nm and 40 mJ at 215 nm. To the best of our knowledge, the 50% second-harmonic conversion efficiency and UV energy demonstrated in this research are the highest yet obtained from a Cr:LiSAF laser.

© 1995 Optical Society of America

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