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Proceedings Paper

Complex delay dynamics of high power quantum cascade oscillators
Author(s): F. Grillot; T. C. Newell; A. Gavrielides; M. Carras
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Paper Abstract

Quantum cascade lasers (QCL) have become the most suitable laser sources from the mid-infrared to the THz range. This work examines the effects of external feedback in different high power mid infrared QCL structures and shows that different conditions of the feedback wave can produce complex dynamics hence stabilization, destabilization into strong mode-competition or undamping nonlinear oscillations. As a dynamical system, reinjection of light back into the cavity also can also provoke apparition of chaotic oscillations, which must be avoided for a stable operation both at mid-infrared and THz wavelengths.

Paper Details

Date Published: 23 August 2017
PDF: 7 pages
Proc. SPIE 10383, Terahertz Emitters, Receivers, and Applications VIII, 103830D (23 August 2017); doi: 10.1117/12.2275630
Show Author Affiliations
F. Grillot, LTCI, Télécom ParisTech, Univ. Paris-Saclay (France)
Univ. of New-Mexico (United States)
T. C. Newell, Air Force Research Lab. (United States)
A. Gavrielides, The Univ. of New Mexico (United States)
M. Carras, mirSense, Ctr. d’intégration NanoInnov (France)

Published in SPIE Proceedings Vol. 10383:
Terahertz Emitters, Receivers, and Applications VIII
Manijeh Razeghi; Alexei N. Baranov; Dimitris Pavlidis; John M. Zavada, Editor(s)

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