Rainbow refractometry with a tailored incoherent semiconductorlaser source

The authors demonstrate within a metrology experiment the applicability of a recently proposed temporally incoherent semiconductor laser source which relies on nonlinear dynamics. The realized spectrally broadband emission with an output power of 110 mW and a coherence length of only 120 μ m is used...

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Bibliographic Details
Published in:Applied physics letters 2006-08, Vol.89 (9), p.091106-091106-3
Main Authors: Peil, Michael, Fischer, Ingo, Elsäßer, Wolfgang, Bakić, Saša, Damaschke, Nils, Tropea, Cameron, Stry, Sandra, Sacher, Joachim
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Summary:The authors demonstrate within a metrology experiment the applicability of a recently proposed temporally incoherent semiconductor laser source which relies on nonlinear dynamics. The realized spectrally broadband emission with an output power of 110 mW and a coherence length of only 120 μ m is used in a rainbow refractometry experiment for sizing of liquid droplets, representing an important problem in industrial processes. The observed emission characteristics are attractive for implementation of modern imaging and metrology techniques which are based on the properties of well-directed, temporally incoherent light.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.2338799