Temporal filtering characteristics of gated InGaAs/InP single-photon detectors for coincidence measurement
文献类型：期刊论文
| 作者 | Jin Ya-Qing1,2; Dong Rui-Fang1,2; Quan Run-Ai1; Xiang Xiao1,2; Liu Tao1,2; Zhang Shou-Gang1,2 |
| 刊名 | ACTA PHYSICA SINICA
 |
| 出版日期 | 2021-04-05 |
| 卷号 | 70期号:7页码:9 |
| 关键词 | coincidence detection single-photon detectors gate pulses temporal filtering |
| ISSN号 | 1000-3290 |
| DOI | 10.7498/aps.70.20201648 |
| 英文摘要 | Semiconductor single-photon avalanche detectors (SPADs) have played an important role in practical quantum communication technology due to their advantages of small size, low cost and easy operation. Among them, InGaAs/InP SPADs have been widely used in fiber-optic quantum key distribution systems due to their response wavelength range in a near-infrared optical communication band. In order to avoid the influence of dark count and afterpulsing on single photon detection, the gated quenching technologies are widely applied to the InGaAs/InP SPADs. Typically, the duration of gate pulse is set to be as short as a few nanoseconds or even less. As the detection of the arrival of single photons depends on the coincidence between the arrival time of gate pulse and the arrival time of photon, the gate pulse duration of the InGaAs/InP SPADs inevitably affects the effective detection of the single photons. Without the influence of dispersion, the temporal width of the transmitted photons is usually on the order of picoseconds or even less, which is much shorter than the gate width of the InGaAs/InP SPAD. Therefore, the gate width normally has no influence on the temporal measurement of the detected photons. However, in quantum systems involving large dispersion, such as the long-distance fiber-optic quantum communication system, the temporal width of the transmitted photons is significantly broadened by the experienced dispersion so that it may approach to or even exceed the gate width of the single-photon detector. As a result, the effect of the gate width on the recording of the arrival time of the dispersed photons should be taken into account. In this paper, the influence of the gate width coupled to the InGaAs/InP single photon detectors on the measurement of the two-photon coincidence time width is studied both theoretically and experimentally. The theoretical analysis and experimental results are in good agreement with each other, showing that the finally measured coincidence time width of the two-photon state after dispersion is not more than half of the effective gate pulses width. The maximum observable coincidence time width based on the gated single photon detector is fundamentally limited by the gate width, which restricts its applications in quantum information processing based on the two-photon temporal correlation measurement. |
| 资助项目 | National Natural Science Foundation of China[12033007] ; National Natural Science Foundation of China[61875205] ; National Natural Science Foundation of China[61801458] ; National Natural Science Foundation of China[91836301] ; Frontier Science Key Research Project of Chinese Academy of Sciences[QYZDB-SW-SLH007] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDC07020200] ; "Western Young Scholar" Project of Chinese Academy of Sciences[XAB2019B17] ; "Western Young Scholar" Project of Chinese Academy of Sciences[XAB2019B15] ; Key R&D Program of Guangdong province, China[2018B030325001] ; Chinese Academy of Sciences Key Project, China[ZDRW-KT-2019-1-0103] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000637968800013 |
| 出版者 | CHINESE PHYSICAL SOC |
| 资助机构 | National Natural Science Foundation of China ; National Natural Science Foundation of China ; Frontier Science Key Research Project of Chinese Academy of Sciences ; Frontier Science Key Research Project of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; "Western Young Scholar" Project of Chinese Academy of Sciences ; "Western Young Scholar" Project of Chinese Academy of Sciences ; Key R&D Program of Guangdong province, China ; Key R&D Program of Guangdong province, China ; Chinese Academy of Sciences Key Project, China ; Chinese Academy of Sciences Key Project, China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Frontier Science Key Research Project of Chinese Academy of Sciences ; Frontier Science Key Research Project of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; "Western Young Scholar" Project of Chinese Academy of Sciences ; "Western Young Scholar" Project of Chinese Academy of Sciences ; Key R&D Program of Guangdong province, China ; Key R&D Program of Guangdong province, China ; Chinese Academy of Sciences Key Project, China ; Chinese Academy of Sciences Key Project, China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Frontier Science Key Research Project of Chinese Academy of Sciences ; Frontier Science Key Research Project of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; "Western Young Scholar" Project of Chinese Academy of Sciences ; "Western Young Scholar" Project of Chinese Academy of Sciences ; Key R&D Program of Guangdong province, China ; Key R&D Program of Guangdong province, China ; Chinese Academy of Sciences Key Project, China ; Chinese Academy of Sciences Key Project, China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Frontier Science Key Research Project of Chinese Academy of Sciences ; Frontier Science Key Research Project of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; "Western Young Scholar" Project of Chinese Academy of Sciences ; "Western Young Scholar" Project of Chinese Academy of Sciences ; Key R&D Program of Guangdong province, China ; Key R&D Program of Guangdong province, China ; Chinese Academy of Sciences Key Project, China ; Chinese Academy of Sciences Key Project, China |
| 源URL | [http://210.72.145.45/handle/361003/11035]  |
| 专题 | 中国科学院国家授时中心 |
| 通讯作者 | Dong Rui-Fang; Zhang Shou-Gang |
| 作者单位 | 1.Chinese Acad Sci, Natl Time Serv Ctr, Key Lab Time & Frequency Primary Stand, Xian 710600, Peoples R China 2.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jin Ya-Qing,Dong Rui-Fang,Quan Run-Ai,et al. Temporal filtering characteristics of gated InGaAs/InP single-photon detectors for coincidence measurement[J]. ACTA PHYSICA SINICA,2021,70(7):9. |
| APA | Jin Ya-Qing,Dong Rui-Fang,Quan Run-Ai,Xiang Xiao,Liu Tao,&Zhang Shou-Gang.(2021).Temporal filtering characteristics of gated InGaAs/InP single-photon detectors for coincidence measurement.ACTA PHYSICA SINICA,70(7),9. |
| MLA | Jin Ya-Qing,et al."Temporal filtering characteristics of gated InGaAs/InP single-photon detectors for coincidence measurement".ACTA PHYSICA SINICA 70.7(2021):9. |
入库方式： OAI收割
来源：国家授时中心
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