非线性效应对量子模分复用系统误码率的影响
|
摘要
在少模光纤中利用模分复用技术可实现经典信号和量子信号的共纤同传。为了分析量子信号在传输过程中因光纤非线性效应而受到经典光信号的影响,研究了非线性效应引起的串扰功率与光纤长度及经典光信号功率的关系,并构建了在非线性效应影响下的量子误码率模型。针对三模模分系统进行仿真分析,探讨了光纤长度和经典光信号功率对量子误码率的影响。仿真结果表明,当选用信号光波长1550 nm,经典光信号功率为-10 dBm时,量子安全通信距离可达到155.7 km,其中经典光信号的功率是对安全通信距离的最大影响因素。
The simultaneous transmission sharing a same few-mode fiber of classical and quantum signals can be realized by using mode division multiplexing.In order to analyze the quantum signal influenced by classical optical signals due to optical fiber nonlinear effects during transmission,the relationships between the crosstalk power caused by nonlinear effect and fiber length,as well as the power of classical optical signals are investigated,and a quantum bit error rate model under the influence of nonlinear effect is constructed.The simulation analysis is carried out for the three modes optical fiber system,and the effects of fiber length and classical optical signal power on the quantum bit error rate are discussed.Simulation results show that when the signal wavelength is 1550 nm and the power of the classical optical signal is-10 dBm,the quantum safe communication distance can reach 155.7 km,among which the power of the classical optical signal is the biggest factor influencing the safe communication,distance.
The simultaneous transmission sharing a same few-mode fiber of classical and quantum signals can be realized by using mode division multiplexing.In order to analyze the quantum signal influenced by classical optical signals due to optical fiber nonlinear effects during transmission,the relationships between the crosstalk power caused by nonlinear effect and fiber length,as well as the power of classical optical signals are investigated,and a quantum bit error rate model under the influence of nonlinear effect is constructed.The simulation analysis is carried out for the three modes optical fiber system,and the effects of fiber length and classical optical signal power on the quantum bit error rate are discussed.Simulation results show that when the signal wavelength is 1550 nm and the power of the classical optical signal is-10 dBm,the quantum safe communication distance can reach 155.7 km,among which the power of the classical optical signal is the biggest factor influencing the safe communication,distance.
引文
[1]Cheng K,Zhou Y Y,Wang H.Research on methods of classical-quantum signals simultaneous transmission sharing a same fiber[J].Optical Communication Technology(光通信技术),2018,3:9-13(in Chinese).
[2]Zhang J,Liu Y,Sahin K(O|¨),et al.Quantum internet using code division multiple access[J].Scientific Reports,2013,3(7):2211.
[3]Wei Haiwei.Research on Multiplexing Technology in Quantum Key Distribution System(量子密钥分发系统中的复用技术研究)[D].Xi'an:Master Thesis of Xidian University,2017:20-22(in Chinese).
[4]Mao Qianping,Zhao Shengmei,Wang Le,et al.Measurement-device-independent quantum key distribution based on wavelength division multiplexing technology[J].Chinese Journal of Quantum Electronics(量子电子学报),2017,34(1):46-53(in Chinese).
[5]Yan Rui,Hong Zhanyong,Liu Jianhong,et al. Quantum key distribution system based on time-division multiplexing technique[J].Chinese Journal of Quantum Electronics(量子电子学报),2018,35(6):674-681(in Chinese).
[6]Luo Junwen,Li Yunxia,Shi Lei,et al. Co-fiber-transmission technology for quantum signal and classical optical signal based on mode division multiplexing in few-mode fiber[J].Laser and Optoelectronics Progress(激光与光电子学进展),2017,2:284-291(in Chinese).
[7]Xie Yiwei.The Key Technologies of High-Speed Optical Fiber Communication System Based on Mode Division Multiplexing(基于模分复用的高速光纤通信系统的关键技术研究)[D].Wuhan:Master Thesis of Huazhong University of Science and Technology,2014:17(in Chinese).
[8]Qin Yuanyuan.Performance Analysis of Optical Fiber Quantum Transmission System(光纤量子传输系统性能分析)[D].Nanjing:Master Thesis of Southeast University,2009:18(in Chinese).
[9]Liu Junyan.Modeling and Simulation of Mode-Division of Multiplexed Optical Transmission System(模分复用光传输系统的建模与仿真)[D].Beijing:Master Thesis of Beijing University of Posts and Telecommunications,2015:19(in Chinese).
[10]Lu Yishan.Research on Noise Reduction Mechanism in Quantum Signals Copropagating with Classical Signals(量子信号与经典光信号共纤传输中的噪声消除机制研究)[D].Beijing:Master Thesis of Beijing University of Posts and Telecommunications,2017:20(in Chinese).
[11]Chen Wei.Experimental Research on Fiber Quantum Key Distribution(光纤量子密钥分配的实验研究)[D].Hefei:Doctorial Dissertation of University of Science and Technology of China,2008:52(in Chinese).
[12]Wen Hao.Protocols and Mechanisms the Quantum Key Distribution Networks(量子密钥分配网络的协议和机制)[D].Hefei:Doctorial Dissertation of University of Science and Technology of China,2008:31-32(in Chinese).
[13]Liu Wei,Yang Shu,Guo Aipeng.Study on key transmission rate and BER of fiber-based quantum key distribution system[J].Optical Communication Technology(光通信技术),2008,32(8):44-47(in Chinese).
[14]Fei Changxing,Zhu Changhua,Nie min,et al. Quantum Communication(量子通信)[M].Xi'an:Xidian University Press,2013:122(in Chinese).
[15]Shor P W,Preskill J.Simple proof of security of the BB84 quantum key distribution protocol[J].Physical Review Letters,2000,85(2):441-444.
[2]Zhang J,Liu Y,Sahin K(O|¨),et al.Quantum internet using code division multiple access[J].Scientific Reports,2013,3(7):2211.
[3]Wei Haiwei.Research on Multiplexing Technology in Quantum Key Distribution System(量子密钥分发系统中的复用技术研究)[D].Xi'an:Master Thesis of Xidian University,2017:20-22(in Chinese).
[4]Mao Qianping,Zhao Shengmei,Wang Le,et al.Measurement-device-independent quantum key distribution based on wavelength division multiplexing technology[J].Chinese Journal of Quantum Electronics(量子电子学报),2017,34(1):46-53(in Chinese).
[5]Yan Rui,Hong Zhanyong,Liu Jianhong,et al. Quantum key distribution system based on time-division multiplexing technique[J].Chinese Journal of Quantum Electronics(量子电子学报),2018,35(6):674-681(in Chinese).
[6]Luo Junwen,Li Yunxia,Shi Lei,et al. Co-fiber-transmission technology for quantum signal and classical optical signal based on mode division multiplexing in few-mode fiber[J].Laser and Optoelectronics Progress(激光与光电子学进展),2017,2:284-291(in Chinese).
[7]Xie Yiwei.The Key Technologies of High-Speed Optical Fiber Communication System Based on Mode Division Multiplexing(基于模分复用的高速光纤通信系统的关键技术研究)[D].Wuhan:Master Thesis of Huazhong University of Science and Technology,2014:17(in Chinese).
[8]Qin Yuanyuan.Performance Analysis of Optical Fiber Quantum Transmission System(光纤量子传输系统性能分析)[D].Nanjing:Master Thesis of Southeast University,2009:18(in Chinese).
[9]Liu Junyan.Modeling and Simulation of Mode-Division of Multiplexed Optical Transmission System(模分复用光传输系统的建模与仿真)[D].Beijing:Master Thesis of Beijing University of Posts and Telecommunications,2015:19(in Chinese).
[10]Lu Yishan.Research on Noise Reduction Mechanism in Quantum Signals Copropagating with Classical Signals(量子信号与经典光信号共纤传输中的噪声消除机制研究)[D].Beijing:Master Thesis of Beijing University of Posts and Telecommunications,2017:20(in Chinese).
[11]Chen Wei.Experimental Research on Fiber Quantum Key Distribution(光纤量子密钥分配的实验研究)[D].Hefei:Doctorial Dissertation of University of Science and Technology of China,2008:52(in Chinese).
[12]Wen Hao.Protocols and Mechanisms the Quantum Key Distribution Networks(量子密钥分配网络的协议和机制)[D].Hefei:Doctorial Dissertation of University of Science and Technology of China,2008:31-32(in Chinese).
[13]Liu Wei,Yang Shu,Guo Aipeng.Study on key transmission rate and BER of fiber-based quantum key distribution system[J].Optical Communication Technology(光通信技术),2008,32(8):44-47(in Chinese).
[14]Fei Changxing,Zhu Changhua,Nie min,et al. Quantum Communication(量子通信)[M].Xi'an:Xidian University Press,2013:122(in Chinese).
[15]Shor P W,Preskill J.Simple proof of security of the BB84 quantum key distribution protocol[J].Physical Review Letters,2000,85(2):441-444.