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Direct modulation and bandwitdh measurement of terahertz quantum cascade laser

Abstract : The authors present a home made cryogenic electro-optical probe station allowing the direct modulation of quantum cascade lasers up to 40GHz. Based on a QMC cryostat, it should make the QCL bandwidth measure possible and then help answering questions about the modulation possibilities of such a kind of laser. The experimental results will be compared to simulation bandwidth prediction based on a complete set of rate equations describing the dynamic behavior of the laser. Bandwidth will be then linked to the different intrinsic and structural parameters.
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Yoann Petitjean, Fabien Destic, Stefano Barbieri, Carlo Sirtori, Jean-Claude Mollier. Direct modulation and bandwitdh measurement of terahertz quantum cascade laser. SPIE NanoScience + Engineering 2010, Aug 2010, San Diego, United States. pp.1-9, ⟨10.1117/12.860335⟩. ⟨hal-02194410⟩

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