Abstract

A method for partially correcting the spatial coherence of an array of laser beams is described. The method trades far-field intensity for simplistic implementation and array lifetime extension, resulting in a quasicoherent array with features of adaptive optics. An algorithm for implementing the method is described and feasible options for improvement are presented. A computer experiment used the algorithm and fast Fourier transforms to calculate typical far-field intensity distributions of such arrays. The far-field distributions illustrate beam power concentration, beam steering, and (indirectly) extended lifetime of the array.

© 1992 Optical Society of America

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