首页|Experimental demonstration of a photonic spiking neuron based on a DFB laser subject to side-mode optical pulse injection

Experimental demonstration of a photonic spiking neuron based on a DFB laser subject to side-mode optical pulse injection

扫码查看
原文链接
  • 万方数据
  • 维普
We proposed and experimentally demonstrated a simple and novel photonic spiking neuron based on a distributed feedback(DFB)laser subject to side-mode optical pulse injection(SMOPI).The DFB laser chip is designed and fabricated based on asymmetric equivalent π phase shift(π-EPS)with the reconstruction-equivalent-chirp(REC)technique.Under side-mode continuous-wave(CW)optical injection,excitability pulse was experimentally observed during the dominant mode switching process due to the injection-locked effect.Based on the transition between the excitability regime and the side-mode injection locking effect,the controllable and repeatable neuron-like spiking response can be realized when external stimulus pulses are electro-optically modulated on the CW optical carrier.The experimental results show that the spike threshold,temporal integration,and refractory period,which are important spike processing mechanisms in biological neurons,can all be achieved in the optically-injected DFB laser.The experimental findings are also verified numerically with a rate equation model that considers the SMOPI.To the best of our knowledge,this is the first experimental demonstration of a photonic spiking neuron based on a DFB laser subject to SMOPI,which holds promise for realizing large-scale photonic spiking neuron arrays for hardware photonic spiking neural network chips.

neuromorphic photonicsphotonic spiking neuronDFB laserside-mode optical pulse injections

Shuiying XIANG、Shuang GAO、Yuechun SHI、Yuna ZHANG、Ziwei SONG、Xingxing GUO、Yahui ZHANG、Yuxin MA、Xiangfei CHEN

展开 >

State Key Laboratory of Integrated Service Networks,Xidian University,Xi'an 710071,China

Yongjiang Laboratory,Ningbo 315202,China

College of Engineering and Applied Sciences,Nanjing University,Nanjing 210023,China

国家重点研发计划国家重点研发计划国家重点研发计划国家重点研发计划国家重点研发计划国家自然科学基金National Outstanding Youth Science Fund Project of National Natural Science Foundation of China中央高校基本科研业务费专项

2021YFB28019002021YFB28019012021YFB28019022021YFB28019042018YFE02012006197417762022062QTZX23041

2024

10.1007/s11432-023-3810-9

中国科学:信息科学(英文版)
中国科学院

中国科学:信息科学(英文版)

CSTPCDEI
影响因子：0.715
ISSN：1674-733X
年,卷(期)：2024.67(3)
  • 50