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Proceedings Paper

Turbulence thermal blooming interactions: static
Author(s): David L. Fried; Roque K. Szeto
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Paper Abstract

In view of the possibility that turbulence-thermal blooming interactions (TTBI) in laser beam atmospheric propagation may yield rapidly growing small scintillations, and ultimately lead to severe beam degradation, attention is presently given to a Born approximation/perturbation transmitter system in a turbulent atmosphere without net wind or beam slew, but with the important effect of 'smearing' in high spatial frequency wavefront distortion due to a random (zero mean) atmospheric wind velocity. The perturbed high energy beam, as well as the perturbed probe beam sensed by the adaptive optics system, are shown to satisfy a system of first-order linear ordinary differential equations. It is found that the presence of the small random wind plays a major role in limiting the growth of TTBI effects.

Paper Details

Date Published: 1 May 1990
PDF: 15 pages
Proc. SPIE 1221, Propagation of High-Energy Laser Beams Through the Earth's Atmosphere, (1 May 1990); doi: 10.1117/12.18341
Show Author Affiliations
David L. Fried, Optical Sciences Co. (United States)
Roque K. Szeto, Optical Sciences Co. (United States)


Published in SPIE Proceedings Vol. 1221:
Propagation of High-Energy Laser Beams Through the Earth's Atmosphere
Peter B. Ulrich; LeRoy E. Wilson, Editor(s)

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