TITLE

Mid-infrared PbTe vertical external cavity surface emitting laser on Si-substrate with above 1 W output power

AUTHOR(S)
Rahim, M.; Fill, M.; Felder, F.; Chappuis, D.; Corda, M.; Zogg, H.
PUB. DATE
December 2009
SOURCE
Applied Physics Letters;12/14/2009, Vol. 95 Issue 24, p241107
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Mid-infrared vertical external cavity surface emitting lasers (VECSELs) emitting above 1 W output power in pulsed mode and up to 17 mW in continuous mode at -172 °C were realized. Emission wavelength changes from 5 μm at -172 °C to 3.6 μm at 20 °C heat sink temperature. The active medium is a one wavelength thick PbTe layer grown by molecular beam epitaxy on a Si-substrate. It is followed by a 2.5 pair Pb1-yEuyTe/EuTe epitaxial Bragg mirror. The cavity is completed with an external curved Pb1-yEuyTe/BaF2 mirror. The VECSEL is optically pumped with 1.55 μm wavelength laser and In-soldered to Cu heat sink. No microstructural processing is needed.
ACCESSION #
47039153

 

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