| Single Photon Detector at Telecom Wavelengths for Quantum Key Distribution |
| |
| 作者姓名： | 刘云 吴青林 韩正甫 戴逸民 郭光灿 |
| |
| 作者单位： | Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei 230026 |
| |
| 基金项目： | Supported by the National Pundamental Research Programme of China under Grant No 2001CB309301, the National Natural Science Foundation of China under Grant Nos 60121503 and 60537020, and the Knowledge Innovation Project of Chinese Academy of Sciences. |
| |
| 摘 要： | Using InGaAs/InP avalanche photodiodes as sensors and coaxial cables as reflection lines to reject spike signals, we have firstly employed the ＂timing filtering＂ gates to pick out avalanche signals and have realized the single photon detection at 1550nm in the temperature range of thermoelectric cooling. A ratio of the dark count rate to the detection efficiency was obtained to be 9 × 10^-5 at 223K. When the detector is applied to a practical quantum key distribution system, the transmission distance can reach 89.5km and the repetition rate can reach 0.33 MHz.
|
| 关 键 词： | 单光子探测器 电信 波导 量子电键分配 光电二极管 |
| 收稿时间： | 2005-10-25 |
| 修稿时间： | 2005-10-25 |
Single Photon Detector at Telecom Wavelengths for Quantum Key Distribution |
| |
| LIU Yun, WU Qing-Lin, HAN Zheng-Fu, DAI Yi-Min, GUO Guang-Can.Single Photon Detector at Telecom Wavelengths for Quantum Key Distribution[J].Chinese Physics Letters,2006,23(1):252-255. |
| |
| Authors: | LIU Yun WU Qing-Lin HAN Zheng-Fu DAI Yi-Min GUO Guang-Can |
| |
| Abstract: | |
| |
| Keywords: | |
| 本文献已被 维普 等数据库收录！ |
