Hysteresis Behavior of External Cavity Quantum Cascade Lasers in the Strong Feedback Regime

被引：3
|
作者：
Schundelmeier, Jonas [1 ]
Yang, Quankui [1 ]
Hugger, Stefan [1 ]
机构：
[1] Fraunhofer Inst Appl Solid State Phys IAF, D-79108 Freiburg, Germany
来源：
IEEE JOURNAL OF QUANTUM ELECTRONICS | 2024年 / 60卷 / 02期
关键词：
External cavity; Littrow configuration; mode hop; hysteresis; quantum cascade laser; stable operation region; tunable laser; CONTINUOUS-WAVE OPERATION; OPTICAL FEEDBACK;
D O I：
10.1109/JQE.2024.3362272
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：
We experimentally investigate mode hops of a continuous-wave (cw) external cavity (EC) quantum cascade laser (QCL) in Littrow configuration, observing hysteresis for variations of either external cavity length, chip current, or grating angle. The results are compared with two different theoretical models. Simulation results suggest that hysteresis in EC-QCLs is caused by self-stabilization due to mode coupling.
引用
收藏
页码：1 / 10
页数：10
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