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A numerical investigation of the mode coupling among the local normal modes of sinusoidally modulated parabolic graded-index planar waveguides

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Abstract

We employ the propagating beam method (PBM) to study mode coupling in the framework of the local normal modes of planar, two-dimensional, graded-index optical waveguides. In particular, we examine the effects of periodic radial deformations along the axis of a parabolic, graded-index, waveguide and compare our results to those of perturbation theory. This comparison allows us to establish the accuracy of the PBM and to generate an improved version of a frequently cited PBM formalism based on the full scalar wave equation rather than the Fresnel approximation.

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References

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Author notes

  1. D. Yevick

    Present address: Department of Theoretical Physics, University of Lund, Sölvegatan 19A, S-22 362, Lund, Sweden

  2. B. Hermansson

    Present address: E368 TELEVERKET HK, Färnebogatan 81-87, S-12 386, Farsta, Sweden

Authors and Affiliations

  1. Institute of Optical Research, S-100 44, Stockholm, Sweden

    D. Yevick & B. Hermansson

Authors
  1. D. Yevick
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  2. B. Hermansson
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Yevick, D., Hermansson, B. A numerical investigation of the mode coupling among the local normal modes of sinusoidally modulated parabolic graded-index planar waveguides. Opt Quant Electron 16, 331–337 (1984). https://doi.org/10.1007/BF00620074

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  • DOI: https://doi.org/10.1007/BF00620074

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