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光纤量子信道的波分复用偏振补偿策略仿真研究 被引量:5

Simulation Research on Strategy for Wavelength Division Multiplexing-Based Compensating Photon Polarization in Optical Fibers
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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。 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.
出处 《光学学报》 EI CAS CSCD 北大核心 2015年第5期76-81,共6页 Acta Optica Sinica
基金 江苏省自然科学基金(BK2012508) 解放军理工大学预研基金
关键词 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 polarization compensation deviation angle quantum key distribution quantum bit error rate
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参考文献20

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