Kang Li, Zhu Wenyue. Measurement of atmospheric coherence length of optical propagation along long distance path[J]. Infrared and Laser Engineering, 2015, 44(6): 1918-1922.
| Citation:
|
Kang Li, Zhu Wenyue. Measurement of atmospheric coherence length of optical propagation along long distance path[J]. Infrared and Laser Engineering, 2015, 44(6): 1918-1922.
|
Measurement of atmospheric coherence length of optical propagation along long distance path
- 1.
Key Laboratory of Atmospheric Composition and Optical Radiation,Anhui Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Hefei 230031,China;
- 2.
University of Chinese Academy of Sciences,Beijing 100049,China
- Received Date: 2014-10-11
- Rev Recd Date:
2014-11-12
- Publish Date:
2015-06-25
-
Abstract
Atmospheric coherence length over a nearly horizontal and 3.95 km path was experimental studied by the large aperture scintillation and differential image motion measure angle-of-arrival fluctuation methods. For two direction (up and down) of the same path, the experiment results show that the correlation coefficient of the large aperture scintillation method is 0.94, while the correlation coefficient of differential image motion measure angle-of-arrival fluctuation method is 0.79. Analysis of path weight function reveals that scintillation is most sensitive to the eddy in the center of the path and its path weight function is symmetrical in the measured path; however, DIMM is most sensitive to the eddy near the receiver and its path weight function is increased monotonically along with measured path from transmitter to receiver. Therefore, the scintillation maybe more appropriate for measuring turbulent effects when light propagate along long distance path whose turbulence intensity distribution is indistinct.
-
References
|
[1]
|
|
|
[2]
|
Fried D L. Optical resolution through a randomly inhomogeneous medium[J]. Opt Soc Am, 1966, 56: 1372-1379. |
|
[3]
|
Wang Jianye, Rao Ruizhong, Liu Xiaochun. Comparision of experimental study of atmospheric coherence length[J].Chinese Jorunal of Lasers, 2005, 32(1): 64-66. (in Chinese) 汪建业, 饶瑞中, 刘晓春. 大气相干长度的对比试验研究[J]. 中国激光, 2005, 32(1): 64-66. |
|
[4]
|
|
|
[5]
|
|
|
[6]
|
Weng Ningquan, Wu Yi, Wang Jianye, et al. Experimental study of obtaining atmospheric coherent length from turbulence profile[J]. High power Laser and Particle Beams, 2004, 16(3): 273-276. (in Chinese) 翁宁泉, 吴毅, 汪建业, 等. 利用湍流廓线获得斜程大气相干长度的实验研究[J]. 强激光与粒子束, 2004, 16(3): 273-276. |
|
[7]
|
|
|
[8]
|
Rao Ruizhong. Modern Atmospheric Optics[M]. Beijing:Science Press, 2012: 415-428. (in Chinese) 饶瑞中, 现代大气光学[M]. 北京: 科学出版社, 2012: 415-428. |
|
[9]
|
Wang T, Ochs G R, Clifford S F. A saturation-resistant optical scintillometer to measure [J]. J Apt Soc Am, 1978, 68(3): 334-338. |
|
[10]
|
|
|
[11]
|
|
|
[12]
|
Wang Jianye, Liu Xiaochun, Rao Ruizhong, et al. Measurement of atmospheric coherence length in daytime and night[J]. High Power Laser and Particle Beams, 2004, 16(1): 1-4. (in Chinese) 汪建业, 刘晓春, 饶瑞中, 等. 大气相干长度的昼夜观测[J]. 强激光与粒子束, 2004, 16(1): 1-4. |
|
[13]
|
Sarazin M, Roddier F. The ESO differential image motion monitor [J]. Astron and Astrophys, 1990, 227(1): 294-300. |
|
[14]
|
|
|
[15]
|
Rao Ruizhong. Light Propagation in the Turbulent Atmosphere[M]. Hefei: Anhui Science and Technology Press, 2005: 180-183. (in Chinese) 饶瑞中.光在湍流大气中的传播[M]. 合肥: 安徽科学技术出版社, 2005: 180-183. |
-
-
Proportional views
-
DownLoad: