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  4. Near-field dynamics of broad area diode laser at very high pump levels
 
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2011
Journal Article
Title

Near-field dynamics of broad area diode laser at very high pump levels

Abstract
Near-field properties of the emission of broad area semiconductor diode lasers under extremely high pumping of up to ~ 50 times the threshold are investigated. Atransition from a gain to thermally-induced index guiding is shown under operation with single pulses of 300 ns duration. At highest output powers, catastrophic optical damage is observed which is studied in conjunction with the evolution of time-averaged filamentary near-field properties. Dynamics of the process is resolved on a picosecond time scale.
Author(s)
Hempel, M.
Tomm, J.W.
Baeumler, Martina  
Fraunhofer-Institut für Angewandte Festkörperphysik IAF  
Konstanzer, Helmer  
Fraunhofer-Institut für Angewandte Festkörperphysik IAF  
Mukherjee, J.
Journal
AIP Advances  
DOI
10.24406/publica-fhg-226876
File(s)
Download (695.78 KB)
Rights
Under Copyright
Language
English
Fraunhofer-Institut für Angewandte Festkörperphysik IAF  
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