In the past two years we have made a sixfold expansion of our laser-damage database. Our primary emphasis has been with the fundamental 1064-nm irradiation generated by Nd:YAG. Because of the increasing need for high-threshold optics designed to operate in the UV, we include data covering the harmonics at 532, 355, and 266 nm. This is further supplemented with results of excimer-laser damage testing at 351 and 248 nm. The presented summaries cover over eight years of complete data plus selected results spanning over a fourteen-year history of damage testing at LLNL using thirteen different laser systems. Besides the range of wavelengths, our parameter space covers pulse durations from < 1 ns to 84 ns, repetition rates from single shots to 6000 Hz, and irradiation modes from single shots to a variety of multiple-shot laser-conditioning techniques.© (1992) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.