Vol. 11, issue 09, article # 18

Kanev F.Yu., Lukin V.P., Lavrinova L.N. Influence of local extrema on the efficiency of gradient algorithms for laser beam control. // Atmospheric and oceanic optics. 1998. V. 11. No. 09. P. 883-888.
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Abstract:

The control over high-power laser beam based on the aperture sounding algorithm and its modification is considered in this paper using methods of numerical experiment. A domain of the problem parameters is shown to exist for which local extrema appear in the space of control coordinates. A decrease in the efficiency of correction for the beam thermal blooming due to these local extrema is estimated. The method for seeking the global (basic) maximum is proposed.

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