Photonic crystal-connected bidirectional micro-ring resonator array for duplex mode and wavelength channel(de)multiplexing  

作　　者：ZHIWEI GUAN CHAOFENG WANG CHUANGXIN XIE HAISHENG WU JUNMIN LIU HUAPENG YE DIANYUAN FAN JIANGNAN XIAO SHUQING CHEN 

机构地区：[1]International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology,Institute of Microscale Optoelectronics,Shenzhen University,Shenzhen 518060,China [2]College of Physics and Engineering Technology,Minzu Normal University of Xingyi,Xingyi 562400,China [3]College of New Materials and New Energies,Shenzhen Technology University,Shenzhen 518118,China [4]Guangdong Provincial Key Laboratory of Optical Information Materials and Technology and Institute of Electronic Paper Displays,South China Academy of Advanced Optoelectronics,South China Normal University,Guangzhou 510006,China [5]Terahertz Technology Innovation Research Institute,Shanghai Key Laboratory of Modern Optical System,Terahertz Science Cooperative Innovation Center,School of Optical-Electrical Computer Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China

出　　处：《Photonics Research》2024年第8期1802-1812,共11页光子学研究（英文版）

基　　金：Natural Science Foundation of Top Talent of SZTU(GDRC202204);Shenzhen Science and Technology Program(JCYJ20210324095610027);Guangdong Basic and Applied Basic Research Foundation(2023A1515030152);National Natural Science Foundation of China(62271322)。

摘　　要：The progress of on-chip optical communication relies on integrated multi-dimensional mode(de)multiplexers to enhance communication capacity and establish comprehensive networks.However,existing multi-dimensional(de)multiplexers,involving modes and wavelengths,face limitations due to their reliance on single-directional total internal reflection and multi-level mode conversion based on directional coupling principles.These constraints restrict their potential for full-duplex functionality and highly integrated communication.We solve these problems by introducing a photonic-like crystal-connected bidirectional micro-ring resonator array(PBMRA)and apply it to duplex mode-wavelength multiplexing communication.The directional independence of total internal reflection and the cumulative effect of the subwavelength-scale pillar within the single-level photonic crystal enable bidirectional mode and wavelength multiplexed signals to transmit among multi-pair nodes without interference,improving on-chip integration in single-level mode conversion.As a proof of concept,we fabricated a nine-channel bidirectional multi-dimensional(de)multiplexer,featuring three wavelengths and three TE modes,compactly housed within a footprint of 80μm×80μm,which efficiently transmits QPSK-OFDM signals at a rate of 216 Gbit/s,achieving a bit error rate lower than 10^(-4).Leveraging the co-ring transmission characteristic and the orthogonality of the mode-wavelength channel,this(de)multiplexer also enables a doubling of communication capacity using two physical transmission channels.

关 键 词：resonator CHANNEL MODE 

分 类 号：TN929.1[电子电信—通信与信息系统]