Quantum key distribution system based on orthogonal frequency division multiplexing and implementation method of system

Quantum key distribution system based on orthogonal frequency division multiplexing and implementation method of system

The invention discloses a quantum key distribution system based on orthogonal frequency division multiplexing and an implementation method of the system. After a transmitting end processes pulse lasergenerated by a first external cavity tunable laser by an orthogonal frequency division multiplexing...

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Hauptverfasser: GUO YING, ZHAO WEI, LI JIAWEI, XIE CAILANG
Format: Patent
Sprache:chi ; eng
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ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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creator GUO YING
ZHAO WEI
LI JIAWEI
XIE CAILANG
description The invention discloses a quantum key distribution system based on orthogonal frequency division multiplexing and an implementation method of the system. After a transmitting end processes pulse lasergenerated by a first external cavity tunable laser by an orthogonal frequency division multiplexing technology, and the pulse laser is transmitted by a fiber channel in a long distance and then received by a receiving end for demodulation to obtain a final safe key. Quantum cryptography practicability is promoted, and the transmission efficiency of quantum signals in the quantum communication process can be effectively improved. 本发明公开了基于正交频分复用的量子密钥分配系统及其实现方法，发送端将第外腔可调谐激光器产生的脉冲激光经过正交频分复用技术处理后，经过光纤通道进行远距离传输后由接收端接收，接收端进行解调，获得最终安全的密钥。本发明推进了量子密码的实用化，同时能有效提高在量子通信过程中量子信号的传输效率。
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ELECTRICITY
TRANSMISSION
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
title Quantum key distribution system based on orthogonal frequency division multiplexing and implementation method of system
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