Abstract
For calculation of eigenmodes of microstructure fibers the beam approximation by a set of orthogonal Laguerre-Gaussian functions is proposed. For structures with hexagonal lattices this method allows to reduce the number of governed functions. For simulation a beam dynamics in microstructured fibers is proposed to apply a wide-angle scheme. In conjunction with approximation of the beam structure by Laguerre-Gaussian functions this method provide sufficiently fast and accurate numerical scheme.
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