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Scattering of the total field from the slow‐tapered and step‐like discontinuities of dielectric waveguides
Author(s) -
Romanova Elena A.,
Melnikov Leonid A.,
Bekker Ella V.
Publication year - 2000
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/(sici)1098-2760(20000405)25:1<27::aid-mop9>3.0.co;2-b
Subject(s) - optics , paraxial approximation , classification of discontinuities , scattering , physics , beam propagation method , transmittance , microwave , wave propagation , materials science , beam (structure) , mathematical analysis , mathematics , refractive index , quantum mechanics
The spatial transient regimes of the total field propagation in irregular optical fibers are considered. The propagation of a linearly polarized, axially symmetric mode through the cutoff cross section in a down‐tapered fiber, as well as the scattering from the step‐like and smooth discontinuities, are simulated by the finite‐difference beam propagation method applied to solve the paraxial scalar wave equation. Kerr‐like nonlinearity, as well as absorption losses of the fiber material, are shown to influence the transmittance of the structures. © 2000 John Wiley & Sons, Inc. Microwave Opt Technol Lett 25: 27–33, 2000.