Numerical investigation of mode coupling in sinusoidally modulated GRIN planar waveguides.
We study mode coupling in planar 2-D graded-index optical waveguides with the beam propagation method. In particular we examine the effect of periodic radial deformations along the axis of a parabolic refractiveindex waveguide and compare our results to the results of perturbation theory.
Yevick
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Danielsen
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