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Calculation of Light Scattering on a Bragg Grating by Recursion of Transfer Matrices on a Nonuniform Grid

  • N. I. Gorbenko
  • V. P. Il’inEmail author
  • L. L. Frumin
Optical Information Technologies
  • 8 Downloads

Abstract

The direct problem of light scattering for a fiber optic Bragg grating is considered. The formulation and solution of the problem based on the transfer-matrix method are discussed. A modification of the method is proposed which reduces it to a computationally convenient universal recursive algorithm similar to the Thomas algorithm. Using the finite volume method in the coupled-mode approximation, the elements of transfer matrices were calculated with local third-order accuracy in coordinate on a nonuniform computational grid. Numerical calculations for the direct scattering problem for a Bragg grating with apodization and nonlinear chirp were performed using the recursive algorithm. Numerical simulations confirmed the significant increase in the accuracy of calculations when solving the scattering problem on a nonuniform grid.

Keywords

fiber Bragg grating scattering problem transfer-matrix method recursive algorithm nonuniform grid 

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Copyright information

© Allerton Press, Inc. 2019

Authors and Affiliations

  • N. I. Gorbenko
    • 1
    • 2
  • V. P. Il’in
    • 1
    • 2
    Email author
  • L. L. Frumin
    • 2
    • 3
  1. 1.Institute of Computational Mathematics and Mathematical Geophysics, Siberian BranchRussian Academy of SciencesNovosibirskRussia
  2. 2.Novosibirsk State UniversityNovosibirskRussia
  3. 3.Institute of Automation and Electrometry, Siberian BranchRussian Academy of SciencesNovosibirskRussia

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