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Avtometriya

2012 year, number 2

Adaptive Focusing of Coherent Radiation with the Use of a Fluctuating Illuminating Signal as a Reference Source

L. A. Bol'basova, V. P. Lukin
Zuev Institute of Atmospheric Optics, Siberian Branch, Russian Academy of Sciences
lukin@iao.ru
Keywords: correction, reference source, phase, coherence
Pages: 76-85

Abstract

Adaptive focusing of a coherent beam in a turbulent atmosphere is considered. Distributions of the mean intensity of the field of a coherent laser beam focused in a turbulent medium by means of adaptive phase correction with the use of a point reference source are calculated. The source retains a random position on the object onto which laser radiation is focused. Results of adaptive focusing with moving and motionless reference sources are compared.