Isoline approach to portraying atmospheric turbulence induced laser beam spread.
A method of portraying the effects of atmospheric turbulence induced laser beam spread on a laser beam emanating from an airborne transmitter is discussed. Application of this method yields a set of contours, called isodivs, which are loci of all points in space, relative to the transmitter, at which the atmospheric turbulence has induced a given l/e down from the axial intensity peak power level long term illumination beam spread or divergence half-angle.
Edmonds
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