Abstract
The absorption spectrum of a new crystal Nd:S-FAP is measured, and its broad absorption band and two strong absorption peaks show that it can be suitably pumped with a tunable dye- laser and a Xenon flash lamp. Using both a tunable dye-laser (570 - 600 nm) and a Xenon flash lamp as pump source, respectively, we have realized the free-running and Q-switched output with BDN dye film at 1.059 micrometer. For the tunable dye-laser pump source, a slope efficiency of 49% and a laser threshold energy of only 2.5 mJ have been measured, while for a Xenon flash lamp pump source, the lowest threshold energy is 150 mJ and the highest slope efficiency is 1.25%. Meanwhile, the emission spectrum, the polarization, the output energy and the pulse width are presented.
Published Version
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