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Farfield Measurements of Y-Coupled Quantum Cascade Lasers

  • L. K. Hoffmann
  • C. A. Hurni
  • S. Schartner
  • M. Austerer
  • E. Mujagić
  • M. Nobile
  • A. M. Andrews
  • W. Schrenk
  • G. Strasser
  • M. P. Semtsiv
  • W. T. Masselink
Part of the Springer Proceedings in Physics book series (SPPHY, volume 119)

Abstract

Y-coupled cavity quantum cascade lasers have been processed from GaAs/AlGaAs and InP/InGaAs/AlAs/AlInAs wafers. Farfields of these samples were investigated. A phase coherence between the two coupled ridges was observed which results in the farfield pattern of a double slit experiment. Coherent coupling gives perspectives for high power laser arrays.

Keywords

Plasma Enhance Chemical Vapor Deposition Quantum Cascade Laser Plasmon Waveguide Double Slit Experiment Coherent Coupling 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    Faist, F. Capasso et al.: ‘Quantum cascade laser’, Science 264, 553–556, 1994PubMedCrossRefADSGoogle Scholar
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    C. Pflügl et al.: ‘High-temperature performance of GaAs-based bound-to-continuum quantum-cascade laser’, Appl. Phys. Lett. 83, 23, 2003CrossRefGoogle Scholar
  3. 3.
    M. P. Semtsiv et al.: ‘Circular-beam cross section quantum-cascade laser’ (to be published)Google Scholar
  4. 4.
    L. K. Hoffmann, C. A. Hurni et al.: ‘Coherence in Y-Coupled quantum cascade lasers’ (to be published)Google Scholar

Copyright information

© Springer Science+Business Media B.V 2008

Authors and Affiliations

  • L. K. Hoffmann
    • 1
  • C. A. Hurni
    • 1
  • S. Schartner
    • 1
  • M. Austerer
    • 1
  • E. Mujagić
    • 1
  • M. Nobile
    • 1
  • A. M. Andrews
    • 1
  • W. Schrenk
    • 1
  • G. Strasser
    • 1
  • M. P. Semtsiv
    • 2
  • W. T. Masselink
    • 2
  1. 1.Center for Micro- and NanostructuresTechnical University ViennaAustria
  2. 2.Department of PhysicsHumboldt University BerlinGermany

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