Integrated(de)multiplexer for orbital angular momentum fiber communication  

作　　者：ZHENWEI XIE SHECHENG GAO TING LEI SHENGFEI FENG YAN ZHANG FAN LI JIANBO ZHANG ZHAOHUI LI XIAOCONG YUAN 

机构地区：[1]Nanophotonics Research Centre,Shenzhen Key Laboratory of Micro-Scale Optical Information Technology,Shenzhen University,Shenzhen 518060,China [2]Department of Electronic Engineering,Jinan University,Guangzhou 510632,China [3]Department of Physics,Capital Normal University,Beijing Key Laboratory of Metamaterials and Devices,Key Laboratory of Terahertz Optoelectronics,Ministry of Education,and Beijing Advanced Innovation Center for Imaging Technology,Beijing 100048,China [4]State Key Laboratory of Optoelectronic Materials and Technologies and School of Electronics and Information Technology,Sun Yat-sen University,Guangzhou 510275,China

出　　处：《Photonics Research》2018年第7期743-749,共7页光子学研究（英文版）

基　　金：National Natural Science Foundation of China(NSFC)(U1701661,61427819,61525502,61435006,11604218,61601199,61775085,61405121);Science and Technology Innovation Commission of Shenzhen(KQCS2015032416183980,KQJSCX20160226193555889,KQTD2015071016560101,KQTD2017033011044403,ZDSYS201703031605029);Leading Talents of Guangdong Province(00201505);Natural Science Foundation of Guangdong Province(2016A030312010,2017A030313351);National Key Basic Research Program of China(973)(2015CB352004)

摘　　要：The quickly increasing data transfer load requires an urgent revolution in current optical communication. Orbital angular momentum(OAM) multiplexing is a potential candidate with its ability to considerably enhance the capacity of communication. However, the lack of a compact, efficient, and integrated OAM(de)multiplexer prevents it from being widely applied. By attaching vortex gratings onto the facets of a few-mode fiber, we demonstrate an integrated fiber-based OAM(de)multiplexer. A vortex grating fabricated on the fiber facet enables the direct multiplexing of OAM states at one port and the demultiplexing of OAM states at the other port. The measured bit error rate of the carrier signal after propagating through a 5-km few-mode fiber confirms the validity and effectiveness of the proposed approach. The scheme offers advantages in future high-capacity OAM communication based on optical fiber.The quickly increasing data transfer load requires an urgent revolution in current optical communication. Orbital angular momentum(OAM) multiplexing is a potential candidate with its ability to considerably enhance the capacity of communication. However, the lack of a compact, efficient, and integrated OAM(de)multiplexer prevents it from being widely applied. By attaching vortex gratings onto the facets of a few-mode fiber, we demonstrate an integrated fiber-based OAM(de)multiplexer. A vortex grating fabricated on the fiber facet enables the direct multiplexing of OAM states at one port and the demultiplexing of OAM states at the other port. The measured bit error rate of the carrier signal after propagating through a 5-km few-mode fiber confirms the validity and effectiveness of the proposed approach. The scheme offers advantages in future high-capacity OAM communication based on optical fiber.

关 键 词：通信技术 通信能力 发展现状 光纤传输 

分 类 号：TN91[电子电信—通信与信息系统]