Add to BibSonomy
Abstract
We propose and demonstrate a data fragment multipath transmission scheme to achieve a secure optical communication based on polarization regulation. A dual-polarization Mach–Zehnder modulator (DPMZM) is driven by digital signals which are scattered by field-programmable gate array (FPGA) and transmitted in multiple paths. By utilizing two orthogonal polarization states, we have achieved a signal transmission under different optical parameters, and the transmission rate of the two paths can reach over 10 Gbps through a 20 km fiber with 2.5 Gbps hopping rate. In addition, we establish a theoretical model to analyze the security of the system and simulate brute force cracking; the probability of cracking the minimum information unit is 1.53 × 10−53. This proves that it is difficult to obtain a user data even using the fastest computers. Our scheme has provided, to our knowledge, a new approach for physical layer security.
© 2024 Optica Publishing Group
Full Article | PDF ArticleMore Like This
Qingchao Huang, Dachang Liu, Yinfang Chen, Yuehui Wang, Jun Tan, Wei Chen, Jianguo Liu, and Ninghua Zhu
Opt. Express 26(10) 13536-13542 (2018)
Ya Jin, Yichao Qi, Yinfang Chen, Wei Chen, Wei Li, and Ninghua Zhu
Opt. Express 29(16) 24919-24927 (2021)
Yaoqiang Xiao, Chunxi Zhou, Linrong Jiang, Zhaoyu An, and Yuqing Li
Opt. Lett. 49(11) 2998-3001 (2024)