Simulation study on fiber-coupling efficiency for quantum communication through atmospheric turbulence
文献类型：会议论文
| 作者 | Long, Xuejun1,2; Qi, Bo1,2; Ren, Ge1,2; Wang, Sanhong3; Ma, Haotong1,2,4; Bian, Jiang1,2 |
| 出版日期 | 2015 |
| 会议名称 | Proceedings of SPIE: 20th International Symposium on High Power Systems and Applications 2014, HPLS and A 2014 |
| 会议日期 | 2015 |
| 卷号 | 9255 |
| 页码 | 92553M |
| 通讯作者 | Long, Xuejun |
| 中文摘要 | Quantum communication is a high secure and high efficiency communication method. The received laser beam in the quantum communication system must be coupled into the fibers, by which the communication signal can be detected, amplified and processed for the latter devices. However, atmospheric turbulence will degrade the spatial coherence of the laser beam and limits the fiber- coupling efficiency. In the paper, the propagation model of the laser beam through atmospheric turbulence is established and the fiber-coupling efficiency for the laser beam distorted by atmospheric turbulence is evaluated, and the optimal coupling geometry parameter a=1.12 is given, with which the theoretical maximal coupling efficiency is reached. Then the relationship between the atmospheric coherence constant r0 and the fiber-coupling efficiency is analyzed. The simulation also indicates that the fast steering mirror (FSM) can reduce the influence of the atmospheric turbulence and improve the coupling efficiency distinctly. © 2015 SPIE. |
| 英文摘要 | Quantum communication is a high secure and high efficiency communication method. The received laser beam in the quantum communication system must be coupled into the fibers, by which the communication signal can be detected, amplified and processed for the latter devices. However, atmospheric turbulence will degrade the spatial coherence of the laser beam and limits the fiber- coupling efficiency. In the paper, the propagation model of the laser beam through atmospheric turbulence is established and the fiber-coupling efficiency for the laser beam distorted by atmospheric turbulence is evaluated, and the optimal coupling geometry parameter a=1.12 is given, with which the theoretical maximal coupling efficiency is reached. Then the relationship between the atmospheric coherence constant r0 and the fiber-coupling efficiency is analyzed. The simulation also indicates that the fast steering mirror (FSM) can reduce the influence of the atmospheric turbulence and improve the coupling efficiency distinctly. © 2015 SPIE. |
| 收录类别 | SCI ; EI |
| 学科主题 | Atmospheric thermodynamics - Atmospheric turbulence - Efficiency - Fibers - High power lasers - Laser beams - Mirrors - Quantum communication - Quantum cryptography |
| 语种 | 英语 |
| ISSN号 | 0277-786X |
| 源URL | [http://ir.ioe.ac.cn/handle/181551/7435]  |
| 专题 | 光电技术研究所_光电工程总体研究室（一室） |
| 作者单位 | 1.Institute of Optics And Electronics, Chinese Academy of Sciences, Chengdu, China 2.Beam Control Laboratory, Chinese Academy of Sciences, Chengdu, China 3.Taiyuan Satellite Launch Center, Taiyuan, Shanxi, China 4.College of Optoelectric Science and Engineering, National University of Defense Technology, Changsha, Hunan, China |
| 推荐引用方式 GB/T 7714 | Long, Xuejun,Qi, Bo,Ren, Ge,et al. Simulation study on fiber-coupling efficiency for quantum communication through atmospheric turbulence[C]. 见:Proceedings of SPIE: 20th International Symposium on High Power Systems and Applications 2014, HPLS and A 2014. 2015. |
入库方式： OAI收割
来源：光电技术研究所
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