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Diode‐pumped continuous‐wave blue laser operation of Nd:GGG at 467.0, 467.7, and 468.5 nm


Intra‐cavity frequency doubling of continuous‐wave (CW) laser emission on the quasi‐three level (4F3/24I9/2) laser transition of Nd3+ in Nd:GGG is reported by using a three‐mirror folded resonator. The thermal lens experienced by the optically‐pumped Nd:GGG laser crystal is measured as a function of the absorbed pump power and compared to that found, in the same conditions, in the case of Nd:YAG. Results are interpreted by using a simple model accounting for the absorbed pump power and the thermo‐mechanical properties of each laser crystal. Diode‐pumped blue laser operation is achieved, for the first time, at 467.0 and 468.5 nm with output powers of 230 and 450 mW, respectively. Simultaneous laser operation resulting both from frequency‐doubling and frequency summing at the three 467.1, 467.7, and 468.1 nm laser wavelengths is also obtained with a total output power of 60 mW. (© 2012 by Astro Ltd., Published exclusively by WILEY‐VCH Verlag GmbH & Co. KGaA) (© 2011 by Astro Ltd., Published exclusively by WILEY‐VCH Verlag GmbH & Co. KGaA)

Autoren:   Xu, B.; Camy, P.; Doualan, J.L.; Braud, A.; Cai, Z.P.; Brenier, A.; Moncorgé, R.
Journal:   Laser Physics Letters
Band:   9
Ausgabe:   4
Jahrgang:   2012
Seiten:   295
DOI:   10.1002/lapl.201110133
Erscheinungsdatum:   01.04.2012
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