光学学报, 2015, 35 (5): 0506003, 网络出版: 2015-04-28
光纤量子信道的波分复用偏振补偿策略仿真研究
Simulation Research on Strategy for Wavelength Division Multiplexing-Based Compensating Photon Polarization in Optical Fibers
光通信 波分复用偏振补偿 偏向角 量子密钥分发 量子误码率 optical communications wavelength division multiplexing- based polarizati deviation angle quantum key distribution quantum bit error rate
摘要
给出了由于偏振演化引起的偏向角与量子误码率(QBER)关系，仿真了不同波长的单参考光和同一偏振态(SOP)的双参考光在不同距离上对单SOP 的信号光进行补偿时的偏向角分布，对于偏振编码的量子密钥分发(QKD)系统，提出了使用SOPs非正交的双参考光并通过在庞加莱球上跟踪双参考光的中间SOP对光量子进行偏振补偿的具体策略，最后仿真验证了该策略的可行性。
Abstract
A relation between deviation angle, caused by state of polarization (SOP) evolution, and quantum bit error rate (QBER) is presented. The distribution of deviation angle for single SOP traveling several distances compensated by one reference signal of different wavelengths and two reference signals of the same SOP is simulated. A strategy which compensates photon polarization by using two reference lights of non-orthogonal SOPs and tracking the middle SOP of them in the Poincaré sphere for quantum key distribution (QKD) system is presented and simulated to be feasible.
王剑, 朱勇, 周华, 苏洋, 张志永. 光纤量子信道的波分复用偏振补偿策略仿真研究[J]. 光学学报, 2015, 35(5): 0506003. Wang Jian, Zhu Yong, Zhou Hua, Su Yang, Zhang Zhiyong. Simulation Research on Strategy for Wavelength Division Multiplexing-Based Compensating Photon Polarization in Optical Fibers[J]. Acta Optica Sinica, 2015, 35(5): 0506003.
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