InGaAs/InP单光子探测器的研制
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Development of InGaAs/InP single photon detector
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    摘要:

    InGaAs/InP单光子探测器是量子密钥分配系统中的重要器件,为了实现InGaAs/InP单光子探测器的国产化,本文采用国产元器件研制了一种InGaAs/InP单光子探测器,包括雪崩二极管、单片机模块、温控模块、偏置电压模块、门控信号模块和小信号处理模块,编写了程序。实验表明,在100 MHz门控条件下且制冷温度为-45 ℃时,探测器的最大探测效率约为25 %,当探测效率为10 %时,暗计数率约为5.8×10-6/ns,后脉冲率仅为1 %。本文研制的单光子探测器能够满足国产仪器设备的要求,对保障我国重点领域信息数据的安全具有显著的价值。

    Abstract:

    InGaAs/InP single-photon detector is an important device in quantum key distribution system. In order to make it come true on the nationalization of InGaAs/InP single-photon detector,a kind of InGaAs/InP single-photon detector based on domestic components,including avalanche diode,single-chip microcomputer module,temperature control module,bias voltage module,gating signal module and small signal processing module,is developed in this paper and the program has been written. The experiment proves that the maximum detecting efficiency of the detector is about 25 % on the condition of 100 MHz gate control and -45 ℃ cooling temperature. When the detecting efficiency is 10 %,the dark count rate is about 5.8×10-6/ns and the pulse rate will only reach 1 %. The single-photon detector introduced in this paper can meet the requirements of domestic instrument and equipment. It has great value to the security of information data in the key field of China.

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刘云,李源,徐焕银,李风雨,马伟,曹德良,朱向冰.InGaAs/InP单光子探测器的研制[J].激光与红外,2020,50(5):573~577

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  • 在线发布日期: 2020-06-02
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