| 共线SPDC下剩余脉冲泵浦光滤光特性研究 |
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| 引用本文： | 白云,权润爱,张羽,侯飞雁,刘涛,张首刚,董瑞芳.共线SPDC下剩余脉冲泵浦光滤光特性研究[J].时间频率学报,2014(1):1-9. |
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| 作者姓名： | 白云 权润爱 张羽 侯飞雁 刘涛 张首刚 董瑞芳 |
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| 作者单位： | [1]中国科学院国家授时中心,西安710600 [2]中国科学院时间频率基准重点实验室,西安710600 [3]中国科学院大学,北京100049 |
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| 基金项目： | 国家自然科学基金重大科研仪器资助专项（Y133ZK1101）;国家自然科学基金资助项目（11174282）;中国科学院“西部之光”人才培养计划资助项目（中科院人教字（2011）180号）;瞬态光学与光子技术国家重点实验室开放基金资助课题 |
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| 摘 要： | 从宽带脉冲泵浦光的光谱及滤光片的滤光特性参数出发，分析了自发参量下转换（SPDC）产生纠缠光源的系统中各类滤光片对剩余脉冲泵浦光的滤除效率。分析结果表明，适当组合不同类型的滤光片可以有效地滤除剩余脉冲泵浦光，并从实验上验证了分析结果的正确性。该研究为脉冲泵浦光条件下SPDC过程产生的纠缠光源的有效测量提供了理论指导和实验验证。
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| 关 键 词： | 自发参量下转换（SPDC） 宽带脉冲泵浦光 滤光效率 单光子探测 |
Research on the filtering characteristic of the remaining pulsed pump light after coUinear SPDC |
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| BAI Yun,QUAN Run-ai,ZHANG Yu,HOU Fei-yan,LIU Tao,ZHANG Shou-gang,DONG Rui-fang.Research on the filtering characteristic of the remaining pulsed pump light after coUinear SPDC[J].Journal of Time and Frequency,2014(1):1-9. |
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| Authors: | BAI Yun QUAN Run-ai ZHANG Yu HOU Fei-yan LIU Tao ZHANG Shou-gang DONG Rui-fang |
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| Institution: | 1. National Time Service Center, Chinese Academy of Sciences, Xi＇an 710600, China; 2. Key Laboratory of Time and Frequency Primary Standards, National Time Service Center, Chinese Academy of Sciences, Xi＇an 710600, China; 3. University of Chinese Academy of Sciences, Beijing 100049, China) |
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| Abstract: | Based on the broadband pulsed pump beam spectrum and the filtering characteristic of optical filters, we analyzed the filtering efficiency of the remaining pump light caused by several kinds of filters in the system of generating entangled light source from the spontaneous parametric down-conversion process（SPDC）. It turned out that the filtering efficiency of remaining pump light can be improved greatly by combining different filters properly. We further proved the validity of this analysis through an experiment. This study provides useful theory proved by experiment for future measurement. |
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| Keywords: | SPDC（spontaneous parametric down-conversion process） broadband puled pump light filtering efficiency single photon detection |
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