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Cutoff behaviour of graded-index slab waveguides

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Abstract

The cutoff behaviour of graded-index planar waveguides is analysed in terms of the normalized waveguide parameters by using the multilayer technique and the WKB approach. The results show a very high degree of accuracy when checked against exact known values for exponential and hyperbolic index profiles. A set of universal plots showing the general features is given for the cutoff values of both fundamental and first-order modes. The TM polarization is also studied by comparison with the TE one.

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Authors and Affiliations

  1. Departament de Teoria del Senyal i Comunicacions, ETSETB, Universitat Politècnica de Catalunya, BP 30002, 08080, Barcelona, Spain

    L. Torner, F. Canal & J. Hernández-Marco

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  1. L. Torner
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  2. F. Canal
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  3. J. Hernández-Marco
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Torner, L., Canal, F. & Hernández-Marco, J. Cutoff behaviour of graded-index slab waveguides. Opt Quant Electron 21, 451–462 (1989). https://doi.org/10.1007/BF02189125

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  • DOI: https://doi.org/10.1007/BF02189125

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