@inproceedings{6bb2fa1d7aed4a5d902fe038b2afb869,
title = "Investigation of Spatial Hole Burning and Linewidth Enhancement Factor Impact on Distributed-Feedback Quantum Cascade Lasers Dynamics",
abstract = "In this manuscript, we employ a time-domain traveling-wave model with a coupled-mode theory to characterize the dynamic behavior of a mid-Infrared (MIR) Quantum Cascade Laser (QCL) in the Distributed-Feedback (DFB) configuration. Our investigation underscores the crucial influence of the linewidth enhancement factor (LEF) and spatial hole burning (SHB) on the single-mode behavior of DFB QCLs. Disregarding these factors leads to an overestimation of the range of pump currents granting single-mode emission and results in an inaccurate simulation of the multimodal dynamics of DFB QCLs. The numerical simulations presented in this work closely align with experimental observations, specifically focusing on a DFB QCL operating at a wavelength of 9.34 µm.",
keywords = "Coupled-mode theory, Distributed-feedback, Effective Semiconductor Maxwell-Bloch Equations, Linewidth Enhancement Factor, Quantum Cascade Laser, Spatial Hole Burning",
author = "Sara Zaminga and Lorenzo Columbo and Carlo Silvestri and Mariangela Gioannini and Fr{\'e}d{\'e}ric Grillot",
note = "Publisher Copyright: {\textcopyright} 2024 SPIE.; Physics and Simulation of Optoelectronic Devices XXXII 2024 ; Conference date: 30-01-2024 Through 01-02-2024",
year = "2024",
month = jan,
day = "1",
doi = "10.1117/12.3001622",
language = "English",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Bernd Witzigmann and Marek Osinski and Yasuhiko Arakawa",
booktitle = "Physics and Simulation of Optoelectronic Devices XXXII",
}