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The article emphasises that intercultural communication is currently becoming the subject of interest of philosophers and pedagogues, psychologists, lingua didactists and methodologist. The approaches to the problem of the formation and development of intercultural communication are shown. The article shows that Intercultural communication occurs when communication partners realize the fact of each other's "foreignness”.

This paper presents the results of an analysis of the necessary propagation conditions in a step-index optical fiber with a Kerr nonlinearity of two modes, LP01 and LP11, during the transmission of high-power optical pulses. All results were obtained by solving a system of two nonlinear equations for these modes, obtained by the Gauss approximation method, and the subsequent use of a procedure for refining estimates using the mixed finite elements method. The necessary conditions are determined, estimates of the boundaries for the range of normalised frequencies for which they are fulfilled are obtained, and an approximate formula is proposed for estimating the upper limit of this range.