Rate equations analysis of a dual-wavelength quantum cascade laser
| Autor: | A. Hamadou, Jean-Luc Thobel, S. Lamari |
|---|---|
| Přispěvatelé: | Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 (IEMN), Centrale Lille-Institut supérieur de l'électronique et du numérique (ISEN)-Université de Valenciennes et du Hainaut-Cambrésis (UVHC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Polytechnique Hauts-de-France (UPHF) |
| Rok vydání: | 2013 |
| Předmět: |
Photon
Population Physics::Optics 02 engineering and technology 01 natural sciences law.invention 010309 optics Optics law 0103 physical sciences Electrical and Electronic Engineering Physical and Theoretical Chemistry education Physics education.field_of_study Steady state business.industry Rate equation 021001 nanoscience & nanotechnology Laser Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Computational physics Wavelength Current (fluid) 0210 nano-technology Quantum cascade laser business |
| Zdroj: | Optics Communications Optics Communications, Elsevier, 2013, 305, pp.147-154. ⟨10.1016/j.optcom.2013.05.004⟩ Optics Communications, 2013, 305, pp.147-154. ⟨10.1016/j.optcom.2013.05.004⟩ |
| ISSN: | 0030-4018 |
| DOI: | 10.1016/j.optcom.2013.05.004 |
| Popis: | Based on a four-level rate equations model, we carry out a detailed analysis of the two modes of a mid-infrared quantum cascade laser operating simultaneously on two laser lines having a common upper level. Analytical solutions are obtained for the steady-states and the stability analysis of these predicts that, depending on the injected current, the device lases on either one of the two modes or on both wavelengths simultaneously. We also show through numerical simulations that the injected current influences significantly the population inversions and photon numbers dynamics trajectory of a two mode laser where the higher the current the shorter the time needed to reach saturation and therefore steady state operation. |
| Databáze: | OpenAIRE |
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