Polarization and wavelength routers based on difractive neural network

作     者：Xiaohong Lin Yulan Fu Kuo Zhang Xinping Zhang Shuai Feng Xiaoyong Hu 

作者机构：School of Physics and Optoelectronic EngineeringBeijing University of TechnologyBeijing 100124China School of ScienceMinzu University of ChinaBeijing 100081China State Key Laboratory for Mesoscopic Physics and Department of PhysicsCollaborative Innovation Center of Quantum MatterBeijing Academy of Quantum Information SciencesNano-Optoelectronics Frontier Center of Ministry of EducationPeking UniversityBeijing 100871China Collaborative Innovation Center of Extreme OpticsShanxi UniversityTaiyuan 030006China Peking University Yangtze Delta Institute of OptoelectronicsNantong 226010China 

出 版 物：《Frontiers of Optoelectronics》 (光电子前沿（英文版）)

年 卷 期：2024年第17卷第3期

页      面：17-28页

核心收录：

学科分类：0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 

基　　金：supported by the National Natural Science Foundation of China(Grant Nos.11734001,11704017,91950204,92150302,12274478,and 61775244) the National Key Research and Development Program of China(Nos.2018YFB2200403,2021YFB2800604,and 2021YFB2800302) the Natural Science Foundation of Beijing Municipality(No.Z180015) 

主　　题：Optical difractive neural network All-optical routers Polarization degree of freedom Wavelength degree of freedom 

摘      要：In the feld of information processing,all-optical routers are signifcant for achieving high-speed,high-capacity signal processing and *** this study,we developed three types of structurally simple and fexible routers using the deep difractive neural network(D2 NN),capable of routing incident light based on wavelength and ***,we implemented a polarization router for routing two orthogonally polarized light *** second type is the wavelength router that can route light with wavelengths of 1550,1300,and 1100 nm,demonstrating outstanding performance with insertion loss as low as 0.013 dB and an extinction ratio of up to 18.96 dB,while also maintaining excellent polarization *** fnal router is the polarization-wavelength composite router,capable of routing six types of input light formed by pairwise combinations of three wavelengths(1550,1300,and 1100 nm)and two orthogonal linearly polarized lights,thereby enhancing the information processing capability of the *** devices feature compact structures,maintaining high contrast while exhibiting low loss and passive characteristics,making them suitable for integration into future optical *** study introduces new avenues and methodologies to enhance performance and broaden the applications of future optical information processing systems.