General scheme for the generation of a laser guide star

摘要

We have pointed out that such two terms as `a laser guide star' (LGS) and `an effective scattering volume' are scientific synonyms. The first term had been introduced earlier by specialists in atmospheric optics and laser sounding. Corresponding mathematical apparatus allows one to estimate correlation characteristics of a LGS. We have considered the mutual correlation function of random angular displacements of a plane wave image and the centroid displacements of a focused Gaussian laser beam.