量子通信中单光子探测器的实验研究

韩宇宏; 杨树; 马海强

量子通信中单光子探测器的实验研究

1.
北京邮电大学理学院,北京100876

详细信息

通讯作者:
韩宇宏（1984-），女，黑龙江省通河县人，北京邮电大学硕士研究生，主要从事量子通信方面的研究工作。

中图分类号: TN911.74;O431
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出版历程
- 刊出日期: 2010-03-12

Single photon detection used in quantum communication

1.
School of Science,Beijing University of Posts and Telecommunications,Beijing 100876,China

摘要

摘要: 为了提高单光子探测系统的灵敏度，实验采用InGaAs/InP雪崩光电二极管作为量子通信中的单光子探测器件，以门控脉冲模式实现了更高精度的单光子探测器的偏压生成电路、单光子信号放大电路、单光子信号检测电路和温度控制模块，并通过选用高精度前置放大器OP37和精密比较器AD8561，将量子效率提高到18.3%，暗计数控制小于4.1%10-6/ns。
- 单光子探测 /
- 门脉冲模式 /
- 雪崩光电二极管 /
- 量子通信
Abstract: In order to improve the sensitivity of single-photon detection systems, InGaAs/InP avalanche photodiode (InGaAs/InP APD) is used in the design of single photon detector of quantum communication. Single photon detector bias generation circuit in gate pulse mode, single-photon signal amplification circuit, single photon signal detection circuit and temperature control module were realized. By selecting high-precision OP37 preamplifier and precision comparator AD8561, quantum efficiency was increased to 18.3%, dark count was controlled within 4.1 10-6/ns.
- single-photon detection /
- gate pulse mode /
- InGaAs/InP APD /
- quantum com-munication

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参考文献(1)

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