1999 Volume 27 Issue 10 Pages 699-702
Recent progress in all-solid-state UV lasers is reviewed. In all-solid-state UV lasers, frequency conversion technique is generally used. CLBO (CsLiB6O10) crystals are mostly used in fourth harmonic generation of solid-state lasers, since the crystal had been discovered. By use of a CLBO crystal, fourth harmonic UV power of 20.5 W was reported by an all-solid-state UV laser this year.