Experimental and numerical demonstration of hierarchical time-delay reservoir computing based on cascaded VCSELs with feedback and multiple injections  

作　　者：Xingxing GUO Shuiying XIANG Xingyu CAO Biling GU 

机构地区：[1]State Key Laboratory of Integrated Service Networks,Xidian University,Xi’an 710071,China [2]State Key Discipline Laboratory of Wide Bandgap Semiconductor Technology,School of Microelectronics,Xidian University,Xi’an 710071,China

出　　处：《Science China(Information Sciences)》2024年第2期275-286,共12页中国科学（信息科学）（英文版）

基　　金：This work was supported in part by National Key Research and Development Program of China(Grant Nos.2021YFB2801900,2021YFB2801901,2021YFB2801902,2021YFB2801903,2021YFB2801904);National Outstanding Youth Science Fund Project of National Natural Science Foundation of China(Grant No.62022062);National Natural Science Foundation of China(Grant Nos.62204196,61974177,61674119);Key Lab of Modern Optical Technologies of Jiangsu Province,Soochow University(Grant No.KJS2140).

摘　　要：In this paper,we propose and demonstrate experimentally and numerically a hierarchical timedelay optical reservoir computing(RC)system based on cascaded vertical-cavity surface-emitting lasers(VCSELs)with feedback and multiple injections.The prediction performance characteristics of the hierarchical time-delay RC system based on cascaded VCSELs under different reservoir layers are compared.Evidently,the prediction performance of the hierarchical time-delay RC system is first improved and saturates as the number of reservoir layers increases.Besides,the impacts of key factors on predicting the hierarchical time-delay RC system are also analyzed in detail experimentally and numerically.This proposed hierarchical time-delay RC system based on VCSELs is useful for the further development of RC systems and may be beneficial to improve the ability of RC systems to solve more complex problems.

关 键 词：vertical-cavity surface-emitting laser reservoir computing neuromorphic photonics time-delay system information processing 

分 类 号：TN248[电子电信—物理电子学]