Second-order intensity-moment characteristics for broadband partially coherent flat-topped beams in atmospheric turbulence

被引:41
|
作者
Mao, Haidan [1 ,2 ]
Zhao, Daomu [1 ]
机构
[1] Zhejiang Univ, Dept Phys, Hangzhou 310027, Peoples R China
[2] Hangzhou Dianzi Univ, Coll Sci, Hangzhou 310018, Peoples R China
来源
OPTICS EXPRESS | 2010年 / 18卷 / 02期
基金
中国国家自然科学基金;
关键词
GAUSSIAN-SCHELL BEAM; RANDOM-MEDIA; ANALYTIC SOLUTION; LIGHT-BEAMS; PROPAGATION; PULSES; LASER; GENERATION;
D O I
10.1364/OE.18.001741
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Based on the intensity moments and Wigner distribution function, the second-order moments for broadband partially coherent flat-topped (BPCFT) beams in atmospheric turbulence are studied. The beam width of BPCFT beams in atmospheric turbulence is larger than that in free space. The beam width of BPCFT beams in atmospheric turbulence is larger than that of broadband fully coherent flat-topped (BFCFT) beams in atmospheric turbulence. The broader the bandwidth is, the larger the beam width of BPCFT beams becomes. Similar conclusion can be obtained by analyzing the divergence angle and beam propagation factor of BPCFT beams. The beam width of BPCFT beams in atmospheric turbulence is less affected by the broad spectral bandwidth than that in free space. The beam width of BFCFT beams in atmospheric turbulence is less affected by the broad spectral bandwidth than that of BPCFT beams in atmospheric turbulence. (C) 2010 Optical Society of America
引用
收藏
页码:1741 / 1755
页数:15
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