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Semiconductor disk laser pumped Cr2+:Znse lasers

: Hempler, N.; Hopkins, J.-M.; Rösener, B.; Rattunde, M.; Wagner, J.; Fedorov, V.V.; Moskalev, I.S.; Mirov, S.B.; Burns, D.

Postprint (164 KByte; PDF; )

Optics Express 17 (2009), Nr.20, S.18136-18141
ISSN: 1094-4087
Zeitschriftenaufsatz, Elektronische Publikation
Fraunhofer IAF ()

A new flexible pump source, the optically-pumped semiconductor disk laser (SDL), for the Cr2+:ZnSe laser is reported. The SDL provides up to 6W output power at a free running central wavelength of 1.98 mu m. The Cr2+: ZnSe laser operated at an output power of 1.8W and a slope efficiency of similar to 50% with respect to absorbed pump power whilst maintaining a low output intensity noise figure of <0.14% RMS. The system required no optical isolation even under the situation of significant optical feedback.