通过频率稳定激光二极管的梯度量子系统减轻量子束诱导的能量带间隙与电场的变化
Yuhong Wang1,2, Yiwei Zhang1,2, Zihan Jiang1,2
1School of Optics and Photonics, Beijing Institute of Technology, Beijing 100081, China.
Nanophotonics (Berlin, Germany)
|December 22, 2025
概括
一个新的梯度量子系统减轻了发光器件中电场诱导的能量波段间隙变化. 这种方法提高了用于量子传感和光通信的激光器的频率稳定性.
科学领域:
- 光电学是指光电子产品.
- 量子纳米结构 量子纳米结构
- 半导体设备 半导体设备
背景情况:
- 电注射发光器件通常使用量子受限结构.
- 量子束斯塔克效应 (QCSE) 导致电场依赖的能量频段间隙,阻碍了激光器的频率稳定性.
- 波段间隙的变化导致光子能量变化和电场依赖的激光频率.
研究的目的:
- 提出和研究一种新的梯度量子系统,以减轻电场依赖的频段间隙变化.
- 为了提高量子限制激光器件的频率稳定性.
- 提高量子传感和光通信应用的性能.
主要方法:
- 一个梯度量子系统的设计,利用 (In) 分离效应来创建倾斜的能量带边缘.
- 在应用电场下对能量频段差距稳定性的实验性表征.
- 梯度纳米线井系统与传统的GaAs量子井对TE和TM极化模式的比较.
主要成果:
- 在强电场下,梯度量子系统表现出最小的能量带间隙变化 (<18.9 μeV cm2/A).
- 观察到带隙稳定性的显著改善:与GaAs量子井相比,TE的稳定性为64.1%,TM极化模式为70.6%.
- 拟议的结构有效地抵消了活跃区域内的电场诱导的频段间隙变化.
结论:
- 梯度量子系统设计成功地减轻了电场诱导的能量频段间隙变化.
- 这种方法显著提高了激光设备的频率稳定性.
- 这些发现对于在量子传感和光通信中推进高性能,频率稳定的激光器至关重要.
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