7.5 - A quartz ablating lamp for u+C3678ltraviolet pumping and repetition-rate pumping

A quartz ablating lamp laser pump which emits intense short-duration radiation, particularly in the ultraviolet, is described. The peak radiation approximates a 19000°K blackbody at wavelengths greater than 3500 Å,and pulse durations are about 30 μs. The lamp successfully pumped a CaF2crystal, doped with ErF3and TmF3to laser emission at 8465 ± 25 Å. In addition, the laser pump was operated at repetition rates up to 30 pulses per second and successfully pumped a neodymium-doped glass rod at repetition rates up to 6 pulses per second.