M. Rodriguez et al., A SIMPLE ROTATING SYSTEM TO AVOID EARLY DEGRADATION OF SOLID-STATE DYE-LASERS, Measurement science & technology, 6(7), 1995, pp. 971-978
A practical device is described, which implements a scanning scheme by
which a solid-state dye laser sample, tranversely pumped, is rotated
to a new position every few shots, thereby avoiding early degradation.
Two different dyes are tested; the proton-transfer dye rbonyl-2-(5'-f
luoro-2'-hydroxyphenyl)benzimidazole co-polymerized with methyl methac
rylate and Rhodamine 6G dissolved in a co-polymer 1:1 by volume of 2-h
ydroxyethyl methacrylate and methyl methacrylate. Pumping was by means
of a N-2 laser at 337 nm using full laser output. It is demonstrated
that laser power falls by less than 10% after 5500 shots at a repetiti
on rate of 2 Hz for the proton-transfer dye and by less than 6% after
150000 shots at 10 Hz for Rhodamine 6G.