Firstly, based on the analysis of some implementations of BB84 protocol, we developed a scheme of quantum key distribution by using polarization encoding and only one single photon detector.
首先，在研究BB 84协议各种具体实现方法的基础上，提出了一种基于偏振编码的量子密钥分发方案，该方案仅使用一台单光子探测器。
Focusing collimators were used instead of single collimator to increase the scattering photon flux received by detector.
提出利用聚焦准直器代替单个准直器以达到增大探测器接收到的散射光子通量的目的。
Due to the limit of response speed of the present single-photon detector, the code rate is still too low to come into practical use for the present quantum key distribution (QKD) system.
由于单光子探测器响应速率的限制，目前的量子密钥分配系统的码率很低，限制了它的实际应用。
A new idea is put up to design a quick single-photon detector.
本文提出了一种构建快速单光子探测器的新方法。
A overview of the basic structure, operating principle and properties for a new single-photon photo-detector, called vacuum avalanche photodiode (VAPD), is presented too.
本文着重介绍了半导体雪崩光电二极管(APD)的研究现状和应用，以及一种新型的单光子探测器—真空雪崩光电二极管(VAPD)的结构，原理和特性。
Analysis indicates the importance of precise temperature control of single-photon detector used for quantum key distribution in infrared communication wavelengths.
分析了在红外通信波段对量子密钥分配的关键器件单光子探测器进行精密温度控制的必要性。
The single-photon prompt detection can come true for high repetition-rate pulses. The applying of this detector will largely raise the code rate of the QKD, and boost the commercial use.
利用它可实现快速的单光子探测，提高量子密钥分配系统的码率，促进量子密钥分配系统的实际应用。
The single-photon prompt detection can come true for high repetition-rate pulses. The applying of this detector will largely raise the code rate of the QKD, and boost the commercial use.
利用它可实现快速的单光子探测，提高量子密钥分配系统的码率，促进量子密钥分配系统的实际应用。
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