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首页> 外文期刊>Measurement techniques >DETECTION EFFICIENCY MEASUREMENT OF SINGLE-PHOTON DETECTORS BASED ON SPONTANEOUS PARAMETRIC SCATTERING PROCESS USING THE HETERODYNING METHOD
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DETECTION EFFICIENCY MEASUREMENT OF SINGLE-PHOTON DETECTORS BASED ON SPONTANEOUS PARAMETRIC SCATTERING PROCESS USING THE HETERODYNING METHOD

机译:基于自差法的自发性参数散射工艺检测单光子探测器的检测效率测量

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The article presents the various problems in the metrological support for the components of quantum information systems and uses the Klyshko reference method given in the international ETSI standard, which works on the principle of spontaneous parametric scattering effect. It is found that the measurement time has increased by an order of magnitude at noise level with a high power density at low frequencies when compared to desired signal level for single-photon detectors. So, the heterodyning method is proposed to increase the efficiency of signal accumulation. The method consists in accumulating a signal at a higher frequency and introducing modulation into the standard Klyshko scheme. The method proposed is simulated numerically and the signal-to-noise ratio is increased by a factor of 14 compared to simple signal accumulation has been established experimentally.
机译:本文介绍了对量子信息系统组件的计量支持中的各种问题,并使用了国际ETSI标准中给出的KlyShko参考方法,该方法适用于自发参数散射效应的原则。结果发现,与单光子检测器的期望信号电平相比,测量时间在噪声水平下在噪声水平上提高了噪声水平的峰值,其低频密度。因此,提出了基于信号累积的效率。该方法包括以较高频率的累积信号累积并将调制引入标准KlyShko方案。在数值上进行数值模拟所提出的方法,并且与实验建立的简单信号累积相比,信噪比增加了14倍。

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