The influence of wavefront dislocations on phase conjugation instability with thermal blooming compensation

Abstract

This paper is devoted to the application of the phase conjugation method to thermal blooming compensation. Analysis of the numerical experimental data has shown that the appearance of continuous auto-oscillations in adaptive systems is connected with the occurrence of dislocations in the reference beam. The use of the Hartmann sensor with low spatial resolution and modal estimation of the phase results in smoothing of the phase estimate and damps the AOS oscillations.