Intersubband nonlinearities in GaAs-based quantum cascade lasers

S. Schartner; M. Austerer; C. Pflügl; T. Roch; A. M. Andrews; W. Schrenk; G. Strasser

doi:10.1117/12.686074

17 October 2006 Intersubband nonlinearities in GaAs-based quantum cascade lasers

S. Schartner, M. Austerer, C. Pflügl, T. Roch, A. M. Andrews, W. Schrenk, G. Strasser

Proceedings Volume 6386, Optical Methods in the Life Sciences; 63860L (2006) https://doi.org/10.1117/12.686074
Event: Optics East 2006, 2006, Boston, Massachusetts, United States

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.

Citation Download Citation

S. Schartner, M. Austerer, C. Pflügl, T. Roch, A. M. Andrews, W. Schrenk, and G. Strasser "Intersubband nonlinearities in GaAs-based quantum cascade lasers", Proc. SPIE 6386, Optical Methods in the Life Sciences, 63860L (17 October 2006); https://doi.org/10.1117/12.686074

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