Research on Co-propagation System Integrating Quantum Key Distribution and Classical Communication

CHEN Lexian; ZHOU Hui; FU Yudi

doi:10.13756/j.gtxyj.2025.240171

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Research on Co-propagation System Integrating Quantum Key Distribution and Classical Communication

更新时间：2025-06-18

- Research on Co-propagation System Integrating Quantum Key Distribution and Classical Communication
- Study on Optical Communications Issue 3, (2025)
- 作者机构：
  
  1.中国电信股份有限公司上海分公司，上海　 200000
  2.烽火通信科技股份有限公司，武汉　 430070
- 作者简介：
- 基金信息：
- DOI：10.13756/j.gtxyj.2025.240171
  CLC： TN918
- Received：09 August 2024，
  
  Revised：20 September 2024，
  
  Published：10 June 2025
- 稿件说明：
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陈乐贤，周慧，付玉笛. 量子密钥分发与经典通信融合共纤传输研究[J]. 光通信研究，2025(3): 240171.

Chen L X, Zhou H, Zeng X H, et al. Research on Co-propagation System Integrating Quantum Key Distribution and Classical Communication[J]. Study on Optical Communications, 2025(3): 240171.
陈乐贤，周慧，付玉笛. 量子密钥分发与经典通信融合共纤传输研究[J]. 光通信研究，2025(3): 240171. DOI： 10.13756/j.gtxyj.2025.240171.

Chen L X, Zhou H, Zeng X H, et al. Research on Co-propagation System Integrating Quantum Key Distribution and Classical Communication[J]. Study on Optical Communications, 2025(3): 240171. DOI： 10.13756/j.gtxyj.2025.240171.

摘要

【目的】

开发量子与通信融合设备，实现单模光纤网络中的量子信号与经典信号共纤传输，可有效推动量子密钥分发（QKD）技术的应用推广。

【方法】

文章通过对共纤传输的需求和关键技术进行分析，提出了一种在C波段密集波分复用（DWDM）系统中连续变量（CV）QKD信号与经典信号共纤传输的方法，并首次将QKD系统集成到光通信传输设备之中。

【结果】

实验测试结果证明，在C波段内CV-QKD可以与C96波段经典信道共存，在67 km链路20.5 dB衰减情况下，可获得0.42 kbit/s的密钥速率。

【结论】

文章所提方案在量子密钥成码率（SKR）、稳定性和共纤兼容性等方面具有较好性能。文章进一步对量子网络应用方案进行了分析展望，为构建一体化量子安全通信网络提供了技术支持。

Abstract

【Objective】

Developing devices that integrate quantum technology with communication enables the coexistence of quantum signals and classical signals in single-mode fiber networks. This can effectively promote the application and popularization of Quantum Key Distribution (QKD) technology.

【Methods】

The paper

through the analysis of the requirements and key technologies for co-fiber transmission

proposes a method for Continuous Variable (CV)-QKD signals and classical signals to be transmitted over the same fiber in a C-band Dense Wavelength Division Multiplexing (DWDM) system. It also

for the first time

integrates the QKD system into optical communication transmission equipment.

【Results】

Experimental test results prove that CV-QKD can coexist with 96 classic channels in C band. Through the 67 km link with 20.5 dB attenuation

a key rate of 0.42 kbit/s can be obtained.

【Conclusion】

The proposed scheme has good performance in terms of quantum key rate

stability

and co-propagation compatibility. The article further analyzes and prospects quantum network application solutions

providing technical support for building an integrated quantum secure communication network.

关键词

Keywords

references

靳安然 , 李鹤 . 混合连续—离散变量量子密钥分发 [J ] . 光通信研究 , 2023 ( 3 ): 24 - 31 .

Jin A R , Li H . Hybrid Continuous-discrete Variable Quantum Key Distribution [J ] . Study on Optical Communications , 2023 ( 3 ): 24 - 31 .

卢利锋 . 量子通信技术研究及其应用分析 [J ] . 光通信研究 , 2013 ( 4 ): 28 - 30 .

Lu L F . Research on Quantum Communication Technologies and Analysis of Their Applications [J ] . Study on Optical Communications , 2013 ( 4 ): 28 - 30 .

Grosshans F , Grangier P . Continuous Variable Quantum Cryptography Using Coherent States [J ] . Physical Review Letters , 2002 , 88 ( 5 ): 057902 .

Huang D , Huang P , Lin D , et al . Long-distance Continuous-variable Quantum Key Distribution by Controlling Excess Noise [J ] . Scientific Reports , 2016 , 6 : 19201 .

Wang X , Wang J , Chen Y , et al . Field Trial of 7 × 89λ × 256 Gb/s C-band Classical/CVQKD Co-existence Transmission over 7-core Fiber [C ] // 2023 Asia Communications and Photonics Conference/2023 International Photonics and Optoelectronics Meetings (ACP/POEM) . Wuhan, China : IEEE , 2023 : 10369872 .

Lord A , Woodward R , Murai S , et al . London Quantum-secured Metro Network [C ] // 2023 Optical Fiber Communications Conference and Exhibition (OFC) . San Diego, CA, USA : IEEE , 2023 : 10116228 .

Oliveira R D , Wang R , Arabul E , et al . QKD-secured and Dynamic Multi-tenant O-RAN 5G Fronthaul with Quantum and Classical Channels Co-existence [J ] . IET Conference Proceedings , 2023 ( 34 ): 1198 - 1201 .

Cao Y , Zhao Y , Wang Q , et al . The Evolution of Quantum Key Distribution Networks: On the Road to the Qinternet [J ] . IEEE Communications Surveys & Tutorials , 2022 , 24 ( 2 ): 839 - 894 .

Guo Y , Yu X , Zhao Y . A Crosstalk-Minimized Wavelength Conflict Avoiding Algorithm for Optical Switching in Quantum-Key-distribution Optical Networks [C ] // 2023 Asia Communications and Photonics Conference/2023 International Photonics and Optoelectronics Meetings (ACP/POEM) . Wuhan, China : IEEE , 2023 : 10369621 .

Kong W , Sun Y , Gao Y , et al . Core and Wavelength Allocation Schemes for Noise Suppression in Quantum Key Distribution over Multicore Fiber [J ] . IEEE Journal of Selected Topics in Quantum Electronics , 2023 , 29 ( 1 ): 1 - 12 .

Hugues-Salas E , Alia O , Wang R , et al . 11.2 Tb/s Classical Channel Coexistence with DV-QKD over a 7-core Multicore Fiber [J ] . Journal of Lightwave Technology , 2020 , 38 ( 18 ): 5064 - 5070 .

Gavignet P , Mondain F , Pincemin E , et al . Co-propagation of 6 Tb/s (60*100 Gb/s) DWDM & QKD Channels with ~17 dBm Aggregated WDM Power over 50 km Standard Single Mode Fiber [C ] // 2023 Optical Fiber Communication Conference (OFC) . San Diego, CA, USA : IEEE , 2023 : Tu3H.2 .

Huang D , Lin D , Wang C , et al . Continuous-variable Quantum Key Distribution with 1 Mbps Secure Key Rate [J ] . Optics Express , 2015 , 23 ( 13 ): 17511 - 17519 .

Huang D , Huang P , Li H , et al . Field Demonstration of a Continuous-variable Quantum Key Distribution Network [J ] . Optics Letters , 2016 , 41 ( 15 ): 3511 - 3514 .

Kleis S , Steinmayer J , Derksen R H , et al . Experimental Investigation of Heterodyne Quantum Key Distribution in the S-band Embedded in a Commercial DWDM System [C ] // 2019 Optical Fiber Communications Conference and Exhibition (OFC) . San Diego, CA, USA : IEEE , 2019 : 8696283 .

Stathis A , Ntanos A , Lyras N K , et al . Coexistence of Quantum/Classical Signals over Converged Fiber/FSO Links for Intra-campus Networking [C ] // 49th European Conference on Optical Communications (ECOC 2023) . Glasgow, UK : IET , 2023 : 10484712 .

Eriksson T A , Hirano T , Puttnam B J , et al . Wavelength Division Multiplexing of Continuous Variable Quantum Key Distribution and 18.3 Tbit/s Data Channels [J ] . Communications Physics , 2019 , 2 : 9 .

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