Excitatory and inhibitory optical neuron implementation using lasing wavelength switching in edge-coupled InAs/InGaAs/GaAs quantum dot lasers

IF 3.6 2区物理与天体物理 Q2 PHYSICS, APPLIED

Applied Physics Letters Pub Date : 2025-09-29 DOI:10.1063/5.0292377

Mikhail Maximov, Yuri Shernyakov, Grigoriy Kornyshov, Artem Beckman, Anton Kharchenko, Nikita Gordeev, Olga Simchuk, Vladimir Dubrovskii, Alexandr Vorobyev, Fedor Zubov

引用次数: 0

Abstract

We report on lasing wavelength switching effects in InAs/InGaAs/GaAs quantum dot (QD) edge-emitting lasers activated by electrical and additional optical pumping provided by another edge-coupled QD laser. The lasers under study operate either on the ground state (GS) or on the excited state (ES). Optical pumping is provided by either GS (1260 nm) or ES (1180 nm) emission. Thus, we have evaluated four combinations of lasing modes and pumping wavelengths. Pumping of QD laser operating on ES transition with light from the GS transition results in suppression of ES lasing, with only GS emission detected. In the other three cases, optical pumping does not change the lasing mode. The switching effects resemble the behavior of biological neurons and can be useful for designing neuromorphic photonic integrated circuits.

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边缘耦合InAs/InGaAs/GaAs量子点激光器中激光波长开关实现兴奋性和抑制性光神经元

我们报道了InAs/InGaAs/GaAs量子点（QD）边缘发射激光器的激光波长开关效应，该激光器由另一个边缘耦合QD激光器提供的电泵浦和附加光泵浦激活。所研究的激光器工作在基态（GS）或激发态（ES）上。光泵浦是由GS （1260nm）或ES （1180nm）发射提供的。因此，我们已经评估了四种激光模式和泵浦波长的组合。利用来自GS跃迁的光泵浦作用于ES跃迁的QD激光器，可以抑制ES激光，只检测到GS发射。在其他三种情况下，光泵浦不改变激光模式。这种开关效应类似于生物神经元的行为，可用于设计神经形态光子集成电路。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Applied Physics Letters 物理-物理：应用

CiteScore

6.40

自引率

10.00%

发文量

1821

审稿时长

1.6 months

期刊介绍： Applied Physics Letters (APL) features concise, up-to-date reports on significant new findings in applied physics. Emphasizing rapid dissemination of key data and new physical insights, APL offers prompt publication of new experimental and theoretical papers reporting applications of physics phenomena to all branches of science, engineering, and modern technology. In addition to regular articles, the journal also publishes invited Fast Track, Perspectives, and in-depth Editorials which report on cutting-edge areas in applied physics. APL Perspectives are forward-looking invited letters which highlight recent developments or discoveries. Emphasis is placed on very recent developments, potentially disruptive technologies, open questions and possible solutions. They also include a mini-roadmap detailing where the community should direct efforts in order for the phenomena to be viable for application and the challenges associated with meeting that performance threshold. Perspectives are characterized by personal viewpoints and opinions of recognized experts in the field. Fast Track articles are invited original research articles that report results that are particularly novel and important or provide a significant advancement in an emerging field. Because of the urgency and scientific importance of the work, the peer review process is accelerated. If, during the review process, it becomes apparent that the paper does not meet the Fast Track criterion, it is returned to a normal track.