| Single-Photon Detection at Telecom Wavelengths |
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| 作者姓名： | 孙志斌 马海强 雷鸣 王迪 刘赵杰 杨捍东 吴令安 翟光杰 冯稷 |
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| 作者单位： | Institute of Physics, Chinese Academy of Sciences, Beijing 100080 |
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| 基金项目： | Supported by the State Key Basic Research Programme of China Grant No 2001CB309301, and the National Natural Science Foundation of China under Grant No 60578029. |
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| 摘 要： | A single-photon detector based on an InGaAs avalanche photodiode has been developed for use at telecom wavelengths. A suitable delay and sampling gate modulation circuit are used to prevent positive and negative transient pulses from influencing the detection of true photon induced avalanches. A monostable trigger circuit eliminates the influence of avalanche peak jitter, and a dead time modulation feedback control circuit decreases the afterpulsing. From performance tests we lind that at the optimum operation point, the quantum efficiency is 12% and the dark count rate 1.5 × 10^-6 ns^-1, with a detection rate of 500 kHz.
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| 关 键 词： | 光子检测 光电二极管 波长 调制技术 |
| 收稿时间： | 2006-9-18 |
| 修稿时间： | 2006-09-18 |
Single-Photon Detection at Telecom Wavelengths |
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| SUN Zhi-Bin,MA Hai-Qiang,LEI Ming,WANG Di,LIU Zhao-Jie,YANG Han-Dong,WU Ling-An,ZHAI Guang-Jie,FENG Ji.Single-Photon Detection at Telecom Wavelengths[J].Chinese Physics Letters,2007,24(2):574-576. |
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| Authors: | SUN Zhi-Bin MA Hai-Qiang LEI Ming WANG Di LIU Zhao-Jie YANG Han-Dong WU Ling-An ZHAI Guang-Jie FENG Ji |
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| Affiliation: | Institute of Physics, Chinese Academy of Sciences, Beijing 100080 |
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| Abstract: | A single-photon detector based on an InGaAs avalanche photodiode has been developed for use at telecom wavelengths. A suitable delay and sampling gate modulation circuit are used to prevent positive and negative transient pulses from influencing the detection of true photon induced avalanches. A monostable trigger circuit eliminates the influence of avalanche peak jitter, and a dead time modulation feedback control circuit decreases the afterpulsing. From performance tests we find that at the optimum operation point, the quantum efficiency is 12% and the dark count rate 1.5×10-6ns-1, with a detection rate of 500kHz. |
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| Keywords: | 85 60 Dw 85 60 Gz 03 67 Dd |
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