Observation of parity-time symmetry in time-division multiplexing pulsed optoelectronic oscillators within a single resonator

作     者：HAO DING QIZHUANG CEN KUN XU MING LI YITANG DAI HAO DING;QIZHUANG CEN;KUN XU;MING LI;YITANG DAI

作者机构：State Key Laboratory of Information Photonics and Optical CommunicationsBeijing University of Posts and TelecommunicationsBeijing 100876China State Key Laboratory on Integrated OptoelectronicsInstitute of SemiconductorsChinese Academy of SciencesBeijing 100083China School of ElectronicElectrical and Communication EngineeringUniversity of Chinese Academy of SciencesBeijing 100049China Center of Materials Science and Optoelectronics EngineeringUniversity of Chinese Academy of SciencesBeijing 100190China Peng Cheng LaboratoryShenzhen 518052China 

出 版 物：《Photonics Research》 (光子学研究（英文版）)

年 卷 期：2022年第10卷第8期

页      面：1915-1923页

核心收录：

学科分类：080904[工学-电磁场与微波技术] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 0702[理学-物理学] 

基　　金：National Key Research and Development Program of China(2018YFA0701902) National Natural Science Foundation of China(62071055,62135014) 

主　　题：optoelectronic resonator symmetry 

摘      要：In recent years,parity-time(PT)symmetry in optoelectronic systems has been widely studied,due to its potential applications in lasers,sensors,topological networks,and other *** this paper,a time-division multiplexed pulsed optoelectronic oscillator(OEO)is proposed to study the dynamics of a PT symmetry *** microwave pulses are used to realize the PT symmetry in a single spatial resonator based on the temporal degrees of *** gain and loss of the microwave pulses and the coupling coefficient between them can then be *** first demonstrate the phase diagram from PT broken to PT symmetry in the OEO *** theoretically prove that the perturbation of a coupling-induced phase shift larger than(2π)×10^(-2)causes the disappearance of the PT *** this experiment,the perturbation is less than(2π)×0.5×10^(-2);thus,the phase transition of PT symmetry is *** addition,multipairs of PT-symmetry pulses indicate that pulsed OEO could be used to implement complex non-Hermitian Hamilton ***,it is confirmed that pulsed OEO is an excellent platform to explore the dynamics of PT symmetry and other non-Hermitian Hamiltonian systems.