| 红外单光子探测器暗计数的研究 |
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| 引用本文： | 赵峰,郑力明,廖常俊,刘颂豪.红外单光子探测器暗计数的研究[J].激光与光电子学进展,2005,42(8):29-32. |
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| 作者姓名： | 赵峰 郑力明 廖常俊 刘颂豪 |
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| 作者单位： | 1. 华南师范大学信息光电子学院,广州,510631
2. 暨南大学电子工程系,广东,510632 |
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| 基金项目： | 国家973计划（2001CB30g300）资助课题. |
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| 摘 要： | 分析暗计数的来源，讨论温度及门控模式下各种参数对暗计数的影响，提出减小暗计数的有效方法。太低的温度不利于暗计数的减小，而应根据不同的APD选择合适的温度并与门控技术结合来消除暗计数。偏置电压的大小、门脉冲宽度和周期的选择对后脉冲的消除起着关键的作用。
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| 关 键 词： | 单光子 后脉冲 探测器 门控技术 暗计数 单光子探测器 计数 红外 脉冲宽度 有效方法 |
| 收稿时间： | 2005-01-04 |
| 修稿时间： | 2005-01-04 |
Dark Count Probability for Single-photon Detector at Infrared Wavelengths |
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| ZHAO Feng,Zheng Liming,Liao Changjun,LIU Songhao.Dark Count Probability for Single-photon Detector at Infrared Wavelengths[J].Laser & Optoelectronics Progress,2005,42(8):29-32. |
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| Authors: | ZHAO Feng Zheng Liming Liao Changjun LIU Songhao |
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| Abstract: | The origin of dark counts about single-photon detectors is analyzed. How the temperature and the gatedmode parameters influence the dark counts is discussed. Methods to reduce dark counts are put forward. It draws a conclusion that too low temperature is not beneficial for reducing dark counts. Therefore ,we should choose appropriate temperature and use gate-mode methods based on different devices to eliminate dark counts. How to choose the bias voltage, the width and the period of the gated pulse is very important. |
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| Keywords: | single-photon after-pulse detector gate-mode dark counts |
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