Research on Key Technologies of Quantum-Safe Metro-Optimized Optical Transport Networks
Source abstract
Abstract
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.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Optical Network Technologies · Advanced Optical Network Technologies · Advanced Photonic Communication Systems
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Guangxi Key Laboratory of Optical Network and Optical Information Security, The 34th Research Institute of China Electronics Technology Group Corporation, Guilin 541004, China
State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, China
College of Computer Science and Engineering, Guilin University of Technology, Guilin 541000, China
Guangxi Key Laboratory of Embedded Technology and Intelligent System, Guilin 541000, China
Funding
2024 Guangxi Key R&D Program Project · Development Fund Project of the 34th Institute of China Electronics Science and Technology Group Corporation
References (18)
Show source-provided references
1. Secure quantum key distribution10.1038/nphoton.2014.149 ↗
2. Gulati, J., and Raman, R. (2024, January 22–23). Quantum Key Distribution: Harnessing the Power of BB84 for Secure Communications in the Post-Quantum Era. Proceedings of the 2024 International Conference on Trends in Quantum Computing and Emerging Business Technologies, Pune, India.10.1109/TQCEBT59414.2024.10545173 ↗
3. Anantraj, I., Umarani, B., Karpagavalli, C., Usharani, C., and Lakshmi, S.J. (2023, January 14–16). Quantum Computing’s Double-Edged Sword Unravelling the Vulnerabilities in Quantum Key Distribution for Enhanced Network Security. Proceedings of the 2023 International Conference on Next Generation Electronics (NEleX), Vellore, India.10.1109/NEleX59773.2023.10420896 ↗
4. Innovation and demonstration of optical service unit-based metro-optimized OTN technologies10.1364/JOCN.447326 ↗
5. Chao, F., and Jing, R. (2024). Research on the Network Architecture and Service Model of Government and Enterprise OTN Network Based on OSU Technology. Study Opt. Commun., 1–10. Available online: http://kns.cnki.net/kcms/detail/42.1266.TN.20241011.1111.004.html.
6. Communication-computing-integrated satellite routing optimization algorithm based on OISL-OSU10.1117/12.3048172 ↗
7. Physical-layer security in evolving optical networks10.1109/MCOM.2016.7537185 ↗
8. Security threats and protection procedures for optical networks10.1049/iet-opt.2016.0150 ↗
9. Design of a temporary optical coupler using fiber bending for traffic monitoring10.1109/JPHOT.2017.2762662 ↗
10. Efficient room-temperature molecular single-photon sources for quantum key distribution10.1364/OE.476440 ↗
11. Computational complexity of continuous variable quantum key distribution10.1109/TIT.2008.921889 ↗
12. Implementation and security analysis of practical quantum secure direct communication10.1038/s41377-019-0132-3 ↗
13. Quantum teleportation coexisting with classical communications in optical fiber10.1364/OPTICA.540362 ↗
14. Lopez-Bastida, A., Mercado-Zúñiga, C., Bornacelli, J., de la Rosa, J.M., and Torres-Torres, C. (2024). All-Optical Encryption Controlled by Multiphotonic Absorption in Carbon Nanotubes. Photonics, 11.10.3390/photonics11111029 ↗
15. Garcia, C.R., Cano, A., Olmos, J.V., Rommel, S., and Monroy, I.T. (2024, January 24–28). Integrating Quantum Key Distribution into TLS 1.3: A Transport Layer Approach to Quantum-Resistant Communications in Optical Networks. Proceedings of the Optical Fiber Communication Conference, San Diego, CA, USA.10.1364/OFC.2024.Th3B.3 ↗
16. ITU-T Study Group (2023). Optical Service Unit (OSU) for Next-Generation Transport Networks, International Telecommunication Union. Work in Progress (Expected publication Q3 2024).
17. (2025, February 10). ITU-T, Interfaces for the Optical Transport Network (OTN), Recommendation G.709, International Telecommunication Union, June 2022. Available online: https://www.itu.int/rec/T-REC-G.709.
18. A 16-channel reconfigurable OCDMA/DWDM system using continuous phase-shift SSFBGs10.1109/JSTQE.2007.897668 ↗