Abstract

A systematic theoretical investigation of thermal self-action of focused cw laser beams has been carried out. A modification of the splitting method, having high accuracy and operation rate, has been developed for a numerical solution of the nonstationary 4-D self-consistent problem. The following are considered: optimization of the focusing parameters at thermal self-action in moving media; blooming of cylindrically focused beams; influence of wind velocity fluctuations on thermal distortions; programmed scanning with the beam along a given path; adaptive phase-conjugate correction of nonstationary thermal defocusing of the beam. In conclusion the results are discussed.

© 1985 Optical Society of America

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