Laser & Optoelectronics Progress, Volume. 53, Issue 8, 80101(2016)
Experimental Analysis of Beam Wander and Beam Spreading under Different Surfaces
Beam wander and beam spreading are two important effects for beam propagation in the atmospheric turbulence. Collimated Gaussian beam propagation experiments by means of CCD technique are conducted under the sea, the beach and the road surface environments in the region of Yantai. Beam wander, beam spreading and refractive index structure parameters are measured, and the characteristics of beam wander and beam spreading are analyzed based on measured data. The results show that the fluctuating amplitude of beam spreading and beam wander is the largest on the sea when the refractive index structure parameter changes a little. The fluctuating amplitude of them is 0~1.5 cm and 0~0.6 cm, respectively. The relative error of beam spreading on the beach surface is the least, and it is less than 10%. The refractive index structure parameter on the road can be one order larger than those on the sea and on the beach. The variation tendency of beam spreading and beam wander is the same as that of refractive index structure parameter.
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Wang Hongxing, Song Bo, Wu Xiaojun, Liu Min. Experimental Analysis of Beam Wander and Beam Spreading under Different Surfaces[J]. Laser & Optoelectronics Progress, 2016, 53(8): 80101
Category: Atmospheric Optics and Oceanic Optics
Received: Mar. 8, 2016
Accepted: --
Published Online: Aug. 11, 2016
The Author Email: Hongxing Wang (buaawhx@163.cn)