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Eigenmode calculation of dielectric waveguides near cutoff using the Rayleigh-Ritz method with rational basis functions

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Abstract

A scalar Rayleigh-Ritz method using rational functions as an orthonormal basis is presented. This formalism is especially useful for the calculation of the fundamental eigenmode of optical waveguides near cutoff. An application for the optimum design of the large-spot output waveguide in tapered spot-size transformers is described.

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Authors and Affiliations

  1. Deutsche Telekom, Forschungs- und Technologiezentrum, Am Kavalleriesand 3, D-64295, Darmstadt, Germany

    O. Leminger & R. Zengerle

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  1. O. Leminger
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  2. R. Zengerle
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Leminger, O., Zengerle, R. Eigenmode calculation of dielectric waveguides near cutoff using the Rayleigh-Ritz method with rational basis functions. Opt Quant Electron 27, 1009–1013 (1995). https://doi.org/10.1007/BF00558492

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  • DOI: https://doi.org/10.1007/BF00558492

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