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Proceedings Paper

Intersubband nonlinearities in GaAs-based quantum cascade lasers
Author(s): S. Schartner; M. Austerer; C. Pflügl; T. Roch; A. M. Andrews; W. Schrenk; G. Strasser
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Paper Abstract

We report second-harmonic and sum-frequency generation in GaAs based quantum cascade lasers. Different waveguide designs and active regions were investigated as well as a doping dependence study of the second-order susceptibility in one of the investigated structures is shown. We present farfield measurements which give information about the modal behavior depending on the waveguide design and dimensions. We also demonstrate that grating-coupled surface emission is a highly efficient way to couple out the second-harmonic radiation.

Paper Details

Date Published: 17 October 2006
PDF: 8 pages
Proc. SPIE 6386, Optical Methods in the Life Sciences, 63860L (17 October 2006); doi: 10.1117/12.686074
Show Author Affiliations
S. Schartner, Zentrum für Mikro- und Nanostrukturen (Austria)
M. Austerer, Zentrum für Mikro- und Nanostrukturen (Austria)
C. Pflügl, Zentrum für Mikro- und Nanostrukturen (Austria)
T. Roch, Zentrum für Mikro- und Nanostrukturen (Austria)
A. M. Andrews, Zentrum für Mikro- und Nanostrukturen (Austria)
W. Schrenk, Zentrum für Mikro- und Nanostrukturen (Austria)
G. Strasser, Zentrum für Mikro- und Nanostrukturen (Austria)


Published in SPIE Proceedings Vol. 6386:
Optical Methods in the Life Sciences
Alexey A. Belyanin; Mostafa Analoui; Rebekah Anna Drezek; Claire F. Gmachl, Editor(s)

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