Wavelength-selective 2 × 2 optical switch based on a Ge2Sb2Te5-assisted microring

作     者：Changping Zhang Ming Zhang Yiwei Xie Yaocheng Shi Rajesh Kumar Roberto R.Panepucci Daoxin Dai 

作者机构：State Key Laboratory for Modern Optical InstrumentationCenter for Optical&Electromagnetic ResearchCollege of Optical Science and EngineeringInternational Research Center for Advanced PhotonicsZhejiang UniversityHangzhou 310058China Ningbo Research InstituteZhejiang UniversityNingbo 315100China Department of PhysicsIndian Institute of Technology RoorkeeRoorkee-247667 UttarakhandIndia Centro de Tecnologia da Informação Renato Archer-CTIRodovia Dom Pedro Ikm 1436Campinas 13069-901São PauloBrazi 

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

年 卷 期：2020年第8卷第7期

页      面：1171-1176页

核心收录：

学科分类：080801[工学-电机与电器] 0808[工学-电气工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：National Major Research and Development Program(2019YFB2203603) National Science Fund for Distinguished Young Scholars(61725503) National Natural Science Foundation of China(61961146003,91950205) Natural Science Foundation of Zhejiang Province(LD19F050001,LZ18F050001) Fundamental Research Funds for the Central Universities 

主　　题：crystalline optical loaded 

摘      要：A novel wavelength-selective 2×2 optical switch based on a Ge2Sb2Te5(GST)-assisted microring-resonator(MRR)is *** present GST-assisted MRR consists of two access optical waveguides and an MRR coupled with a bent GST-loaded silicon photonic *** 2×2 optical switch is switched ON or OFF by modifying the GST state to be crystalline or *** particular,the microring waveguide and the bent GST-loaded waveguide are designed to satisfy the phase-matching condition when the GST is *** a result,the MRR becomes highly lossy and the resonance peak is depressed *** the other hand,when it is off,there is little coupling due to the significant phase ***,one has a low-loss transmission at the drop port for the resonance *** this paper,the simulation using the three-dimensional finite-difference method shows that the extinction ratio of the designed photonic switch is^20 d B at the resonance wavelength,while the excess losses at the through port and drop port are 0.9 d B and 2 d *** particular,the resonance wavelength changes little between the ON and OFF states,which makes it suitable for multichannel wavelength-division-multiplexing systems.