Nonlinear Photonics in Mid-infrared Quantum Cascade Lasers
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Springer Theses
| ISBN: |
3319881213 |
| ISBN 13: |
9783319881218 |
| Autor: |
Jumpertz, Louise |
| Verlag: |
Springer Verlag GmbH |
| Umfang: |
xxiii, 134 S., 94 s/w Illustr., 6 farbige Illustr., 134 p. 100 illus., 6 illus. in color. |
| Erscheinungsdatum: |
18.05.2018 |
| Auflage: |
1/2017 |
| Produktform: |
Kartoniert |
| Einband: |
Kartoniert |
This thesis presents the first comprehensive analysis of quantum cascade laser nonlinear dynamics and includes the first observation of a temporal chaotic behavior in quantum cascade lasers. It also provides the first analysis of optical instabilities in the mid-infrared range. Mid-infrared quantum cascade lasers are unipolar semiconductor lasers, which have become widely used in applications such as gas spectroscopy, free-space communications or optical countermeasures. Applying external perturbations such as optical feedback or optical injection leads to a strong modification of the quantum cascade laser properties. Optical feedback impacts the static properties of mid-infrared Fabry-Perot and distributed feedback quantum cascade lasers, inducing power increase; threshold reduction; modification of the optical spectrum, which can become either single- or multimode; and enhanced beam quality in broad-area transverse multimode lasers. It also leads to a different dynamical behavior, and a quantum cascade laser subject to optical feedback can oscillate periodically or even become chaotic. A quantum cascade laser under external control could therefore be a source with enhanced properties for the usual mid-infrared applications, but could also address new applications such as tunable photonic oscillators, extreme events generators, chaotic Light Detection and Ranging (LIDAR), chaos-based secured communications or unpredictable countermeasures.
