基于剪切干涉法的大气相干长度直接实时测量
文献类型：期刊论文
| 作者 | 周健; 孙建锋; 鲁伟; 马小平; 刘立人 |
| 刊名 | 中国激光
 |
| 出版日期 | 2014 |
| 卷号 | 41期号:12页码:1208006 |
| 关键词 | 光通信 大气相干长度 剪切干涉仪 大气湍流 |
| 其他题名 | Real-Time Measurement of Atmospheric Coherence Length Based on Lateral Shearing Interferometry |
| 通讯作者 | Zhou Jian, Key Laboratory of Space Laser Communication and Testing Technology, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China. ; Sun Jianfeng, Key Laboratory of Space Laser Communication and Testing Technology, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China. ; Lu wei, Key Laboratory of Space Laser Communication and Testing Technology, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China. ; Ma Xiaoping, Key Laboratory of Space Laser Communication and Testing Technology, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China. ; Liu Liren, Key Laboratory of Space Laser Communication and Testing Technology, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China. |
| 中文摘要 | 大气湍流的随机变化对星地激光通信性能有所限制,高速激光通信对瞬时湍流特性的描述提出新的要求。基于剪切干涉法对大气相干长度进行直接、实时测量。通过测量经过大气扰动的畸变光波前的剪切相位分布,利用满足各态历经随机过程条件时,相位结构函数的时间平均等于系综平均的特点,结合Fried相位结构函数,得到实时的大气相干长度。采用波长为635 nm的光波进行1.2 km距离实验,成功测得了大气相干长度,并通过对比实验验证了其可行性,解决了在高速激光通信中,传统的测量大气相干长度方法在时间累积和统计分析方面的限制。 |
| 英文摘要 | Random changes of atmospheric turbulence have restrictions on the performance of satellite-to-ground laser communication. High-speed laser communication proposes new requirements on the description of turbulence characteristics in a short period. A direct, real-time measurement of atmospheric coherent length method based on lateral shearing interferometry is proposed. By measuring the sheared phase distribution of the phase distortion caused by atmospheric turbulence, considering that the time average of phase structure function is equal to the ensemble average when the turbulence is an ergodic random process and combining the Fried phase structure function, the atmospheric coherent length can be measured. Experiments are conducted by using a 635 nm laser wave through a 1. 2 km distance. The results demonstrate the feasibility of this method, and solve the constraints in time accumulation and statistical analysis of the traditional measurements. |
| 收录类别 | EI |
| 原文出处 | http://www.opticsjournal.net |
| 语种 | 中文 |
| 版本 | 出版稿 |
| 源URL | [http://ir.siom.ac.cn/handle/181231/13462]  |
| 专题 | 上海光学精密机械研究所_空间激光信息技术研究中心 |
| 作者单位 | 1.周健, 中科院上海光学精密机械研究所, 中国科学院空间激光通信及检测技术重点实验室, 上海 201800, 中国. 2.孙建锋, 中科院上海光学精密机械研究所, 中国科学院空间激光通信及检测技术重点实验室, 上海 201800, 中国. 3.鲁伟, 中科院上海光学精密机械研究所, 中国科学院空间激光通信及检测技术重点实验室, 上海 201800, 中国. 4.马小平, 中科院上海光学精密机械研究所, 中国科学院空间激光通信及检测技术重点实验室, 上海 201800, 中国. 5.刘立人, 中科院上海光学精密机械研究所, 中国科学院空间激光通信及检测技术重点实验室, 上海 201800, 中国. |
| 推荐引用方式 GB/T 7714 | 周健,孙建锋,鲁伟,等. 基于剪切干涉法的大气相干长度直接实时测量[J]. 中国激光,2014,41(12):1208006. |
| APA | 周健,孙建锋,鲁伟,马小平,&刘立人.(2014).基于剪切干涉法的大气相干长度直接实时测量.中国激光,41(12),1208006. |
| MLA | 周健,et al."基于剪切干涉法的大气相干长度直接实时测量".中国激光 41.12(2014):1208006. |
入库方式： OAI收割
来源：上海光学精密机械研究所
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