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3-4.5 μm continuously tunable single mode VECSEL

Fill, M. ; Felder, F. ; Rahim, M. ; Khiar, A. ; Zogg, H.

In: Applied Physics B, 2012, vol. 109, no. 3, p. 403-406

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    Titre
    • 3-4.5 μm continuously tunable single mode VECSEL
    Auteur
    • Fill, M.. ETH Zürich, Technoparkstr. 1, 8005, Zurich, Switzerland
    • Felder, F.. ETH Zürich, Technoparkstr. 1, 8005, Zurich, Switzerland
    • Rahim, M.. ETH Zürich, Technoparkstr. 1, 8005, Zurich, Switzerland
    • Khiar, A.. ETH Zürich, Technoparkstr. 1, 8005, Zurich, Switzerland
    • Zogg, H.. ETH Zürich, Technoparkstr. 1, 8005, Zurich, Switzerland
    Type de document
    • Postprint
    Classification
    • Physique
    Identifiant OAI-PMH
    • oai:doc.rero.ch:312233
    Summary
    We present continuously tunable Vertical External Cavity Surface Emitting Lasers (VECSEL) in the mid-infrared. The structure based on IV-VI semiconductors is epitaxially grown on a Si-substrates. The VECSEL emit one single mode, which is mode hop-free tunable over 50-100nm around the center wavelength. In this work, two different devices are presented, emitting at 3.4μm and 3.9μm, respectively. The lasers operate near room temperature with thermoelectric stabilization. They are optically pumped, yielding an output power >10mWp. The axial symmetric emission beam has a half divergence angle of <3.3∘