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| 量子保密通信用的光精密控制强衰减技术 | |
| 引用本文： | 刘景锋,梁瑞生,刘伟平,唐志列,郑力明,魏正军,陈志新,廖常俊,刘颂豪. 量子保密通信用的光精密控制强衰减技术[J]. 光子学报, 2004, 33(7): 867-870 |
| 作者姓名： | 刘景锋 梁瑞生 刘伟平 唐志列 郑力明 魏正军 陈志新 廖常俊 刘颂豪 |
| 作者单位： | 华南师范大学信息光电子科技学院,广州,510631;暨南大学电子工程系,广州,510630;华南师范大学物理系,广州,510631 |
| 基金项目： | 国家 973(2 0 0 1CB30 930 0 )项目，广州市 (1999 Z 0 35 0 1)资助项目 |
| 摘 要： | 光衰减技术是一种重要的光学技术,它在许多领域有重要的应用.在量子密钥分配中采用光衰减技术可获得单光子序列,这是量子保密通信的基础.用线性分束耦合器形成多个输出口,将光强的时序衰减变为光强沿输出口的空间分布,研制出了量子保密通信用的精密控制强衰减器,实现了对光子数的精密控制. |
| 关 键 词： | 单光子 量子密钥分配 分束耦合器 光衰减 |
| 收稿时间： | 2003-07-03 |
| 修稿时间： | 2003-07-03 |
Precise Controlled Optical Attenuator for Quantum Security Communication |
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. Precise Controlled Optical Attenuator for Quantum Security Communication[J]. Acta Photonica Sinica, 2004, 33(7): 867-870 |
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| Authors: | |
| Affiliation: | (1 School for Information and Optoelectronics Science and Engineering, South China Normal University, Guangzhou 510631) (2 Department of Physics, South China Normal University, Guangzhou 510631) (3 Department of Electronic Engineering, Jinan University, Guangzhou 510630) |
| Abstract: | Optical attenuation, widely applied in many fields, can be adopted to acquire single-photon sequence that is foundational in quantum key distribution. Single-photon sequence can be obtained by precisely controlled optical power distribution along manifold outlets consisted of beam splitters .This can realize optical power spatial distribution instead of attenuation by time sequence due to loss. |
| Keywords: | Single-photon Quantum Key Distribution Beam splitter Attenuation |
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