| 超短光脉冲波形对门模单光子探测的影响 |
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| 引用本文： | 方俊彬,廖常俊,魏正军,刘小宝,王金东,刘颂豪.超短光脉冲波形对门模单光子探测的影响[J].光子学报,2014,38(9):2192-2195. |
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| 作者姓名： | 方俊彬 廖常俊 魏正军 刘小宝 王金东 刘颂豪 |
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| 作者单位： | （华南师范大学 信息光电子科技学院光子信息技术广东省高校重点实验室,广州 510631） |
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| 基金项目： | 国家973计划(G2001039302)；教育部博士学科点专项科研基金（20050574001）；广东省科技计划（2007B010400009）;国家973项目 |
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| 摘 要： | 采用两种不同的皮秒光脉冲波形进行了门模单光子探测实验.测量了单光子探测效率随探测器和超短脉冲光源之间的同步延迟细微调节时的变化曲线.结果表明：光脉冲波形直接影响光子到达时间与门脉冲时间窗口之间的精确同步和探测效率，使用其中一种脉宽较短的皮秒光脉冲时探测效率比使用另一种脉冲提高了约9%.
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| 关 键 词： | 单光子探测 超短光脉冲 门模式 探测效率 |
| 收稿时间： | 2008-08-18 |
Influence of Ultra short Laser Pulse Shapes on Gate mode Single Photon Detection |
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| FANG Jun-bin,LIAO Chang-jun,WEI Zheng-jun,LIU Xiao-bao,WANG Jin-dong,LIU Song-ha.Influence of Ultra short Laser Pulse Shapes on Gate mode Single Photon Detection[J].Acta Photonica Sinica,2014,38(9):2192-2195. |
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| Authors: | FANG Jun-bin LIAO Chang-jun WEI Zheng-jun LIU Xiao-bao WANG Jin-dong LIU Song-ha |
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| Institution: | (Laboratory of Photonic Information Technology,School for Information and Optoelectronic Science
and Engineering,South China Normal University,Guangzhou 510631,China) |
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| Abstract: | Experiments of gated mode single photon detection are performed using two picosecond laser pulses with different pulse shapes.The variation of single photon detection efficiency versus synchronous delay between detector and ultra short pulse laser source is measured.The experimental results show that laser pulse shapes directly influence the precise synchronization between the arrival time of photon and the time window of gating pulse and so the detection efficiency.The detection efficiency can be improved about 9% using the shorter one of picosecond laser pulses compared with the other one. |
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| Keywords: | Single photon detection Ultra-short laser pulse Gate-mode Detection efficiency |
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