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A novel full vectorial eigenmode propagation algorithm based on the method of lines is presented, which is applied to the three-dimensional analysis of reflecting longitudinal varying optical waveguides with high refractive index contrast between the transverse and propagation direction. Results for the computation of the vectorial field in a polarisation converter are shown and discussed in comparison with prevoiusly published data.
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Gerdes et al. (1995) studied this question.
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