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用于量子密钥分发与经典光通信共存系统的低自发拉曼散射少模光纤

Few-Mode Fiber with Low Spontaneous Raman Scattering for Quantum Key Distribution and Classical Optical Communication Coexistence Systems.

作者信息

Zhao Qi, Tang Jianjun, Kong Weiwen, Zhao Zhenyu, Zheng Jingjing, Liu Yang

机构信息

Institute of Basic Operations Technology, China Telecom Research Institute, Beijing 102209, China.

China Academy of Information and Communications Technology, Beijing 102209, China.

出版信息

Sensors (Basel). 2024 Nov 29;24(23):7645. doi: 10.3390/s24237645.

DOI:10.3390/s24237645
PMID:39686197
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11644988/
Abstract

In this paper, the theoretical model of spontaneous Raman scattering (SpRS) in few-mode fiber (FMF) is discussed. The influence of SpRS on quantum key distribution (QKD) in FMF is evaluated by combining wavelength division multiplexing (WDM) and space division multiplexing (SDM) techniques. On this basis, an improved ring-assisted FMF is designed and characterized; the transmission distance can be increased by up to 54.5% when choosing different multi-channels. The effects of forward and backward SpRS on QKD are also discussed.

摘要

本文讨论了少模光纤（FMF）中自发拉曼散射（SpRS）的理论模型。通过结合波分复用（WDM）和空分复用（SDM）技术，评估了SpRS对FMF中量子密钥分发（QKD）的影响。在此基础上，设计并表征了一种改进的环形辅助FMF；当选择不同的多通道时，传输距离可增加高达54.5%。还讨论了前向和后向SpRS对QKD的影响。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4e3e/11644988/1996fa6cb6a2/sensors-24-07645-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4e3e/11644988/7a2852802a62/sensors-24-07645-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4e3e/11644988/c720ecaee56e/sensors-24-07645-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4e3e/11644988/de71a38848e9/sensors-24-07645-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4e3e/11644988/0324bd1450e7/sensors-24-07645-g004a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4e3e/11644988/7457b0d15095/sensors-24-07645-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4e3e/11644988/f8c4f01c5aa3/sensors-24-07645-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4e3e/11644988/44583f4d326b/sensors-24-07645-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4e3e/11644988/67b733da1ac9/sensors-24-07645-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4e3e/11644988/1996fa6cb6a2/sensors-24-07645-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4e3e/11644988/7a2852802a62/sensors-24-07645-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4e3e/11644988/c720ecaee56e/sensors-24-07645-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4e3e/11644988/de71a38848e9/sensors-24-07645-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4e3e/11644988/0324bd1450e7/sensors-24-07645-g004a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4e3e/11644988/7457b0d15095/sensors-24-07645-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4e3e/11644988/f8c4f01c5aa3/sensors-24-07645-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4e3e/11644988/44583f4d326b/sensors-24-07645-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4e3e/11644988/67b733da1ac9/sensors-24-07645-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4e3e/11644988/1996fa6cb6a2/sensors-24-07645-g009.jpg

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本文引用的文献

1
Experimental Twin-Field Quantum Key Distribution over 1000 km Fiber Distance.在1000公里光纤距离上的实验性双场量子密钥分发
Phys Rev Lett. 2023 May 26;130(21):210801. doi: 10.1103/PhysRevLett.130.210801.
2
Integration in the C-band between quantum key distribution and the classical channel of 25 dBm launch power over multicore fiber media.在多芯光纤介质上，量子密钥分发与发射功率为25 dBm的经典信道在C波段的集成。
Opt Lett. 2022 Jun 15;47(12):3111-3114. doi: 10.1364/OL.463545.
3
Long-distance transmission of quantum key distribution coexisting with classical optical communication over a weakly-coupled few-mode fiber.
量子密钥分发在弱耦合少模光纤上与经典光通信共存的长距离传输。
Opt Express. 2020 Apr 27;28(9):12558-12565. doi: 10.1364/OE.388857.
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Distribution of entangled photon pairs over few-mode fibers.纠缠光子对在少模光纤中的分布。
Sci Rep. 2017 Nov 2;7(1):14954. doi: 10.1038/s41598-017-14955-z.
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Space division multiplexing chip-to-chip quantum key distribution.空分复用芯片间量子密钥分发
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Measurement of polarization mode coupling along a polarization-maintaining optical fiber using a backscattering technique.
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Phys Rev Lett. 2005 Jun 17;94(23):230504. doi: 10.1103/PhysRevLett.94.230504. Epub 2005 Jun 16.
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