摘要
光子神经形态计算因其高速、并行处理与低功耗等优势,成为突破电子算力瓶颈的关键方向,而低成本、高适配性光子脉冲神经元是光子神经形态计算的核心需求。法布里-珀罗(FP)激光器具备的优势包括谐振腔由天然解理面构成、无须复杂工艺的制备优势,成本显著低于其他激光器,且多模输出适配性强。文章以FP激光器为研究对象,通过实验系统探究其在外光注入下的脉冲动力学特性,兴奋性、抑制性两种刺激信号注入下的类神经元特性。实验结果表明,FP激光器在外光注入下具有脉冲特性,在兴奋性、抑制性两种刺激信号下均可实现稳定的阈值、时域累积及不应期特性。因此,FP激光器可作为光子脉冲神经元器件,可有效促进低成本、高密度集成光脉冲神经网络的发展,为其在边缘计算、实时传感等领域的落地应用开辟更广阔路径。
Photonic neuromorphic computing,with its advantages of high speed,parallel processing,andlow power consumption,has emerged as a key direction to overcome the limitations of electroniccomputing power.Low-cost,highly adaptable photonic spiking neurons are a core requirement forphotonic neuromorphic computing.Fabry-Perot(FP)lasers offer significant cost advantages over otherlaser devices,as their resonant cavities are formed by naturally cleaved facets and require no complexfabrication processes.Additionally,their multi-mode output provides strong adaptability.This studyfocuses on FP lasers,investigating their spiking dynamic characteristics under external optical injectionand their neuron-like behaviors under both excitatory and inhibitory stimulus signal injection modes byestablishing an experimental system.Experimental results demonstrate that FP lasers exhibit spikingcharacteristics under external optical injection,and can achieve stable threshold,temporal integration,and refractory period properties under both excitatory and inhibitory stimulus signals.Therefore,FP lasers canserve as photonic spiking neuron devices,effectively advancing the development of low-cost and highlyintegrated photonic spiking neural networks and paving the way for their broader application in fields suchas edge computing and real-time sensing.
作者
张雅慧
高爽
项水英
郭星星
刘高见
张武
谭庆贵
ZHANG Yahui;GAO Shuang;XIANG Shuiying;GUO Xingxing;LIU Gaojian;ZHANG Wu;TAN Qinggui(School of Communication Engineering,State Key Laboratory of Integrated Services Networks,Xidian University,Xi’an 710071,China;Criminal Investigation and Counter Terrorism College,Criminal Investigation PoliceUniversity of China,Shenyang 110854,China;China Academy of Space Technology(Xi’an),Xi’an 710000,China)
出处
《空间电子技术》
2026年第1期62-69,共8页
Space Electronic Technology
基金
国家自然科学基金项目(编号:62204196,62205258,62401463)
中央高校基本科研业务费(编号:QTZX23041)。
