Polarization controlling by FPGA for quantum security communication

被引：3

作者：

An H.-Y. ^{[1
]}

Liu D.-W. ^{[1
,2
]}

Geng R.-H. ^{[3
]}

Zeng H.-P. ^{[4
]}

Zhao L.-X. ^{[1
]}

机构：

[1] School of Software and Microelectronics, Peking University, Beijing

[2] Aerospace Defense Technology Research and Testing Center, Beijing

[3] Department of Precision Instruments, Tsinghua University, Beijing

[4] State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai

来源：

Xi Tong Gong Cheng Yu Dian Zi Ji Shu/Systems Engineering and Electronics | 2016年 / 38卷 / 08期

关键词：

Field programmable gate array (FPGA); Polarization controlling; Quantum security communication;

D O I：

10.3969/j.issn.1001-506X.2016.08.30

中图分类号：

学科分类号：

摘要：

The polarization of photons in the optical fiber cannot maintain stable for long distance. Therefore, polarization control is necessary for the fiber-based polarization-encoded quantum security communication system to guarantee correct key generation. With the development of the practical quantum communication, field programmable gate array (FPGA) has played an important role in the information processing and system operation due to its advantage of high efficiency, high integration and high security. A polarization control scheme and polarization initialization is presented and applied to the BB84 protocol based on FPGA to stabilize photon polarization in the fiber. 90% of a code-consuming is higher than 65% of the maximum value in the computer control center. With the same codec and error correction mode, if who has more time consuming for coding, then he will get more efficient key generation. FPGA, single photon detection, and electric polarization controller (EPC) mechanism can be unified and integrated to achieve the miniaturization of quantum polarization controlling. © 2016, Editorial Office of Systems Engineering and Electronics. All right reserved.

引用

页码：1917 / 1921

页数：4

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