Measurements of 0.63 $m laser-beam scintillation in strong atmospheric turbulence
Title | Measurements of 0.63 $m laser-beam scintillation in strong atmospheric turbulence PDF eBook |
Author | G. R. Ochs |
Publisher | |
Pages | 17 |
Release | 1969 |
Genre | |
ISBN |
Measurements of 0.63mm Laser-beam Scintillation in Strong Atmospheric Turbulence
Title | Measurements of 0.63mm Laser-beam Scintillation in Strong Atmospheric Turbulence PDF eBook |
Author | G. R. Ochs |
Publisher | |
Pages | 28 |
Release | 1969 |
Genre | Laser beams |
ISBN |
Log-amplitude variance and covariance of the scintillation of a diverging optical beam have been measured over a 48-hr period at a wavelength of 0.63[mu], on a 490 and 1000 m optical paths 2 m above the surface of a flat mesa near Boulder, Colorado. Simultaneous measurements of the refractive-index structure of the atmosphere have been obtained from temperature-structure-function measurements at spacings of 1, 3, and 10 cm. A saturation of scintillation occurs for values of log-amplitude variance between 0.5 and 1. After reaching a peak, the log-amplitude variance then decreases with both increasing range and increasing refractive-index turbulence. The spatial covariance of the fluctuations tends to increase in the saturation region. In the unsaturated region, the log-amplitude variance is approximately that predicted by the spherical-wave propagation theory of Tatarski.
MEASUREMENTS OF 0.63 Um LASER-BEAM SCINTILLATION IN STRONG ATMOSPHERIC TURBULENCE
Title | MEASUREMENTS OF 0.63 Um LASER-BEAM SCINTILLATION IN STRONG ATMOSPHERIC TURBULENCE PDF eBook |
Author | Wave Propagation Laboratory |
Publisher | |
Pages | 17 |
Release | 1969 |
Genre | |
ISBN |
Measurements of 0.63mm Laser-beam Scintillation in Strong Atmospheric Turbulence
Title | Measurements of 0.63mm Laser-beam Scintillation in Strong Atmospheric Turbulence PDF eBook |
Author | G. R. Ochs |
Publisher | |
Pages | 17 |
Release | 1969 |
Genre | Laser beams |
ISBN |
Measurements of 0.63mm Laser-beam Scintillation in Strong Atmospheric Turbulence
Title | Measurements of 0.63mm Laser-beam Scintillation in Strong Atmospheric Turbulence PDF eBook |
Author | G. R. Ochs |
Publisher | |
Pages | 17 |
Release | 1969 |
Genre | Laser beams |
ISBN |
MEASUREMENTS OF 0.63 MICROMETER LASER-BEAM SCINTILLATION IN STRONG ATMOSPHERIC TURBULENCE.
Title | MEASUREMENTS OF 0.63 MICROMETER LASER-BEAM SCINTILLATION IN STRONG ATMOSPHERIC TURBULENCE. PDF eBook |
Author | G. R. Ochs |
Publisher | |
Pages | 17 |
Release | 1969 |
Genre | |
ISBN |
Laser Beam Scintillation with Applications
Title | Laser Beam Scintillation with Applications PDF eBook |
Author | Larry C. Andrews |
Publisher | SPIE Press |
Pages | 408 |
Release | 2001 |
Genre | Science |
ISBN | 9780819441034 |
Renewed interest in laser communication systems has sparked development of useful new analytic models. This book discusses optical scintillation and its impact on system performance in free-space optical communication and laser radar applications, with a detailed look at propagation phenomena and the role of scintillation on system behavior. Intended for practicing engineers, scientists, and students.