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Room temperature, continuous wave operation of distributed feedback quantum cascade lasers with widely spaced operation frequencies

Andreas Wittmann, Marcella Giovannini, Jérôme Faist, Lubos Hvozdara, Stéphane Blaser, Daniel Hofstetter & Emilio Gini

Résumé Lasing properties of room temperature, continuous wave operated distributed feedback (DFB) quantum cascade lasers are reported. A bound-to-continuum active region was used to generate a broad gain spectrum. As a result, first-order DFB lasers employing different periods allowed us to achieve single mode continuous wave emission at several wavelengths ranging from 7.7 to 8.3 mu m at a temperature of +30 degrees C. The frequency span corresponds to 8% of the center frequency. (c) 2006 American Institute of Physics.
   
Mots-clés SINGLE-MODE, MU-M, WAVELENGTH
   
Citation Wittmann, A., Giovannini, M., Faist, J., Hvozdara, L., Blaser, S., Hofstetter, D., & Gini, E. (2006). Room temperature, continuous wave operation of distributed feedback quantum cascade lasers with widely spaced operation frequencies. Applied Physics Letters, 89(14).
   
Type Article de périodique (Anglais)
Date de publication 2006
Nom du périodique Applied Physics Letters
Volume 89
Numéro 14