Speckle propagation through atmospheric turbulence: Effects of a random phase screen at the source

被引：19

作者：

Korotkova, O ^{[1
]}

Andrews, LC ^{[1
]}

Phillips, RL ^{[1
]}

机构：

[1] Univ Cent Florida, Dept Math, Orlando, FL 32816 USA

来源：

FREE-SPACE LASER COMMUNICATION AND LASER IMAGING II | 2002年 / 4821卷

关键词：

D O I：

10.1117/12.452054

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

By using ABCD ray matrix theory and a random phase screen located near the source, analytic expressions are developed for the mutual coherence function and scintillation index of a Gaussian-beam wave propagating through weak atmospheric turbulence in both the pupil plane and image plane of a receiving system. The phase screen model that we use is based on a previous double-pass analysis by the authors for analyzing speckle propagation from a rough target in a lidar system. In the present context,. it serves as a model for a partially coherent Gaussian-beam wave that is currently used in laser communications. The effect of partial coherence (induced by a diffuser) on the scintillation index of the beam in the presence of weak atmospheric turbulence is investigated as a function of the correlation length of the diffuser and the propagation distance.

引用

页码：98 / 109

页数：12

共 13 条

[1]

Andrews L.C., 2001, LASER BEAM SCINTILLA

[2]

Andrews L. C., 1998, Laser beam propagation through random media

[3]

BANAKH VA, 1983, OPT SPEKTROSK+, V54, P1054

[4] THE SCINTILLATIONS FOR WEAK ATMOSPHERIC-TURBULENCE USING A PARTIALLY COHERENT SOURCE [J].