Research on Key Technologies of Quantum-Safe Metro-Optimized Optical Transport Networks
This research introduces a novel physical-layer encryption technique for metropolitan-optimized optical transport networks (M-OTNs) that integrates real-time optical signal time-domain scrambling/descrambling with decoy-state quantum key distribution (DS-QKD). The method processes real-time optical...
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| Format: | Article |
| Language: | English |
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MDPI AG
2025-03-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/15/5/2809 |
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| author | Wei Zhou Bingli Guo Boying Cao Xiaohui Cheng |
| author_facet | Wei Zhou Bingli Guo Boying Cao Xiaohui Cheng |
| author_sort | Wei Zhou |
| collection | DOAJ |
| description | This research introduces a novel physical-layer encryption technique for metropolitan-optimized optical transport networks (M-OTNs) that integrates real-time optical signal time-domain scrambling/descrambling with decoy-state quantum key distribution (DS-QKD). The method processes real-time optical data from the optical service unit (OSU) using a series of tunable Fabry–Perot cavities (FPCs), synchronized and updated with a running key. Experimental validation demonstrates secure communication within the optical network’s physical layer during standard OTU2 data transmission (10.709 Gbps), achieving an online transmission distance exceeding 100 km over typical single-mode fiber with a power loss of approximately 1.77 dB. The results indicate that this integrated approach significantly enhances the security of the optical physical layer in M-OTNs. |
| format | Article |
| id | doaj-art-98ea416a531f48a4bc9fcdc02c982418 |
| institution | DOAJ |
| issn | 2076-3417 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj-art-98ea416a531f48a4bc9fcdc02c9824182025-08-20T02:52:41ZengMDPI AGApplied Sciences2076-34172025-03-01155280910.3390/app15052809Research on Key Technologies of Quantum-Safe Metro-Optimized Optical Transport NetworksWei Zhou0Bingli Guo1Boying Cao2Xiaohui Cheng3Guangxi Key Laboratory of Optical Network and Optical Information Security, The 34th Research Institute of China Electronics Technology Group Corporation, Guilin 541004, ChinaState Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, ChinaGuangxi Key Laboratory of Optical Network and Optical Information Security, The 34th Research Institute of China Electronics Technology Group Corporation, Guilin 541004, ChinaCollege of Computer Science and Engineering, Guilin University of Technology, Guilin 541000, ChinaThis research introduces a novel physical-layer encryption technique for metropolitan-optimized optical transport networks (M-OTNs) that integrates real-time optical signal time-domain scrambling/descrambling with decoy-state quantum key distribution (DS-QKD). The method processes real-time optical data from the optical service unit (OSU) using a series of tunable Fabry–Perot cavities (FPCs), synchronized and updated with a running key. Experimental validation demonstrates secure communication within the optical network’s physical layer during standard OTU2 data transmission (10.709 Gbps), achieving an online transmission distance exceeding 100 km over typical single-mode fiber with a power loss of approximately 1.77 dB. The results indicate that this integrated approach significantly enhances the security of the optical physical layer in M-OTNs.https://www.mdpi.com/2076-3417/15/5/2809decoy-state quantum key distributionmetropolitan optimized optical transport networkoptical service unittunable Fabry–Perot cavity |
| spellingShingle | Wei Zhou Bingli Guo Boying Cao Xiaohui Cheng Research on Key Technologies of Quantum-Safe Metro-Optimized Optical Transport Networks Applied Sciences decoy-state quantum key distribution metropolitan optimized optical transport network optical service unit tunable Fabry–Perot cavity |
| title | Research on Key Technologies of Quantum-Safe Metro-Optimized Optical Transport Networks |
| title_full | Research on Key Technologies of Quantum-Safe Metro-Optimized Optical Transport Networks |
| title_fullStr | Research on Key Technologies of Quantum-Safe Metro-Optimized Optical Transport Networks |
| title_full_unstemmed | Research on Key Technologies of Quantum-Safe Metro-Optimized Optical Transport Networks |
| title_short | Research on Key Technologies of Quantum-Safe Metro-Optimized Optical Transport Networks |
| title_sort | research on key technologies of quantum safe metro optimized optical transport networks |
| topic | decoy-state quantum key distribution metropolitan optimized optical transport network optical service unit tunable Fabry–Perot cavity |
| url | https://www.mdpi.com/2076-3417/15/5/2809 |
| work_keys_str_mv | AT weizhou researchonkeytechnologiesofquantumsafemetrooptimizedopticaltransportnetworks AT bingliguo researchonkeytechnologiesofquantumsafemetrooptimizedopticaltransportnetworks AT boyingcao researchonkeytechnologiesofquantumsafemetrooptimizedopticaltransportnetworks AT xiaohuicheng researchonkeytechnologiesofquantumsafemetrooptimizedopticaltransportnetworks |