Investigation of Spatial Hole Burning and Linewidth Enhancement Factor Impact on Distributed-Feedback Quantum Cascade Lasers Dynamics

被引：0

作者：

Zaminga, Sara ^{[1
]}

Columbo, Lorenzo ^{[2
]}

Silvestri, Carlo ^{[3
]}

Gioannini, Mariangela ^{[2
]}

Grillot, Frederic ^{[1
]}

机构：

[1] Inst Polytech Paris, LTCI Telecom Paris, Palaiseau, France

[2] Politecn Torino, Dipartimento Elettron & Telecomunicaz, Turin, Italy

[3] Univ Queensland, Sch Elect Engn & Comp Sci, Brisbane, Qld, Australia

来源：

PHYSICS AND SIMULATION OF OPTOELECTRONIC DEVICES XXXII | 2024年 / 12880卷

关键词：

Quantum Cascade Laser; Distributed-feedback; Effective Semiconductor Maxwell-Bloch Equations; Coupled-mode theory; Linewidth Enhancement Factor; Spatial Hole Burning;

D O I：

10.1117/12.3001622

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

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 mu m.

引用

页数：7

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