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High-frequency modulation of a quantum-cascade laser using a monolithically integrated intracavity modulator

Daniel Hofstetter, Mattias Beck, Thierry Aellen & Stéphane Blaser

Résumé We report a quantum-cascade laser monolithically integrated with an intracavity modulator which could be operated up to 1 GHz. In contrast to earlier approaches, where the radio frequency (RF) modulation signal was supplied to the entire cavity length of the laser structure, we drive only a relatively small 375-mum-long section,of the cavity. At the same time, a quasi-contiunous-wave signal was supplied to the remaining 1125-mum-long section. This modulation scheme resulted in smaller parasitic capacitance effects than what we reported previously, and enabled us to work with lower RF voltages and currents.
   
Mots-clés atmospheric window, free-space, intracavity modulator, optical data, transmission, quantum-cascade (QC) laser, PHOTOACOUSTIC-SPECTROSCOPY
   
Citation Hofstetter, D., Beck, M., Aellen, T., & Blaser, S. (2003). High-frequency modulation of a quantum-cascade laser using a monolithically integrated intracavity modulator. Ieee Photonics Technology Letters, 15(8), 1044-1046.
   
Type Article de périodique (Anglais)
Date de publication 2003
Nom du périodique Ieee Photonics Technology Letters
Volume 15
Numéro 8
Pages 1044-1046