Encrypted optical fiber tag based on encoded fiber Bragg grating array  

作　　者：Zhihao Cai Bozhe Li Zhiyong Bai Dejun Liu Kaiming Yang Bonan Liu Cong Zhao Mengqiang Zou Jie Zhou Shangben Jiang Jingyi Huang Li Liu Xuming Zhang Junle Qu Yiping Wang Changrui Liao 

机构地区：[1]Shenzhen Key Laboratory of Photonic Devices and Sensing Systems for Internet of Things,Guangdong and Hong Kong Joint Research Centre for Optical Fibre Sensors,State Key Laboratory of Radio Frequency Heterogeneous Integration,Shenzhen University,Shenzhen 518060,People’s Republic of China [2]Shenzhen Key Laboratory of Ultrafast Laser Micro/Nano Manufacturing,Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education/Guangdong Province,College of Physics and Optoelectronic Engineering,Shenzhen University,Shenzhen 518060,People’s Republic of China [3]Guangdong Laboratory of Artificial Intelligence and Digital Economy(SZ),Shenzhen 518107,People’s Republic of China [4]Department of Electronic Engineering,Chinese University of Hong Kong,Hong Kong,People’s Republic of China [5]Department of Applied Physics,The Hong Kong Polytechnic University,HongKong,People’sRepublic of China

出　　处：《International Journal of Extreme Manufacturing》2023年第3期658-665,共8页极端制造（英文）

基　　金：supported by the National Natural Science Foundation of China(62122057,62075136,62105217,62205221,62205222);the Basic and Applied Basic Research Foundation of Guangdong Province(2022B1515120061);Shenzhen Science and Technology Program(Shenzhen Key Laboratory of Ultrafast Laser Micro/Nano Manufacturing ZDSYS20220606100405013,RCYX20200714114524139,JCYJ20200109114001806)。

摘　　要：Optical fibers are typically used in telecommunications services for data transmission,where the use of fiber tags is essential to distinguish between the different transmission fibers or channels and thus ensure the working functionality of the communication system.Traditional physical entity marking methods for fiber labeling are bulky,easily confused,and,most importantly,the label information can be accessed easily by all potential users.This work proposes an encrypted optical fiber tag based on an encoded fiber Bragg grating(FBG)array that is fabricated using a point-by-point femtosecond laser pulse chain inscription method.Gratings with different resonant wavelengths and reflectivities are realized by adjusting the grating period and the refractive index modulations.It is demonstrated that a binary data sequence carried by a fiber tag can be inscribed into the fiber core in the form of an FBG array,and the tag data can be encrypted through appropriate design of the spatial distributions of the FBGs with various reflection wavelengths and reflectivities.The proposed fiber tag technology can be used for applications in port identification,encrypted data storage,and transmission in fiber networks.

关 键 词：fiber Bragg grating femtosecond laser micromachining encrypted information optical fiber tag 

分 类 号：TN253[电子电信—物理电子学]