Reduction of laser intensity scintillations in turbulent atmospheres using time averaging of a partially coherent beam

被引：10

作者：

Berman, G. P. ^{[1
]}

Bishop, A. R. ^{[2
]}

Chernobrod, B. M. ^{[1
]}

Gorshkov, V. N. ^{[1
,3
,4
]}

Lizon, D. C.

Moody, D. I.

Nguyen, D. C.

Torous, S. V. ^{[3
]}

机构：

[1] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA

[2] Los Alamos Natl Lab, Theory Simulat & Computat Directorate, Los Alamos, NM 87545 USA

[3] Natl Tech Univ Ukraine KPI, UA-03056 Kiev 56, Ukraine

[4] Natl Acad Sci Ukraine, Inst Phys, UA-680028 Kiev, Ukraine

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 2009年 / 42卷 / 22期

关键词：

SPACE OPTICAL COMMUNICATIONS; DIFFERENT WAVELENGTHS; RANDOM-MEDIA; COMMUNICATION; PROPAGATION; MODEL;

D O I：

10.1088/0953-4075/42/22/225403

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We demonstrate experimentally and numerically that the application of a partially coherent beam (PCB) in combination with time averaging leads to a significant reduction in the scintillation index. We use a simplified experimental approach in which the atmospheric turbulence is simulated by a phase diffuser. The role of the speckle size, the amplitude of the phase modulation and the strength of the atmospheric turbulence are examined. We obtain good agreement between our numerical simulations and our experimental results. This study provides a useful foundation for future applications of PCB-based methods of scintillation reduction in physical atmospheres.

引用

页数：11

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