Skip to Main content Skip to Navigation

Nonlinear photonics in mid-infrared quantum cascade lasers

Abstract : Mid-infrared quantum cascade lasers are unipolar semiconductor lasers, which have become widely used sources for applications such as gas spectroscopy, free-space communications or optical countermeasures. Applying external per-turbations such as optical feedback or optical injection leads to a strong modification of the quantum cascade laser prop-erties. Optical feedback impacts the static properties of mid-infrared Fabry-Perot and distributed feedback quantum cas-cade lasers, inducing power increase, threshold reduction, modification of the optical spectrum, which can become either single- or multimode, and enhanced beam quality of 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: this work provides the very first analysis of optical instabilities in the mid-infrared range. A numerical study of optical injection furthermore proves that quantum cascade lasers can injection-lock over a few gigahertz, where they should experience enhanced stability and especially improved modulation bandwidth. Furthermore, some promising dynamics appear outside the locking range with periodic oscillations at a tunable frequency or high-intensity events. 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 gen-erators, chaotic LIDAR, chaos-based secured communications or unpredictable countermeasures
Document type :
Complete list of metadata
Contributor : ABES STAR :  Contact
Submitted on : Tuesday, June 7, 2022 - 12:17:11 PM
Last modification on : Thursday, June 9, 2022 - 12:24:02 AM
Long-term archiving on: : Thursday, September 8, 2022 - 6:43:03 PM


Version validated by the jury (STAR)


  • HAL Id : tel-03689516, version 1


Louise Jumpertz. Nonlinear photonics in mid-infrared quantum cascade lasers. Optics / Photonic. Télécom ParisTech, 2016. English. ⟨NNT : 2016ENST0064⟩. ⟨tel-03689516⟩



Record views


Files downloads