Abstract
A new approach is presented to determining the profile characteristics of planar optical waveguides. The mode index value is developed into the Lagrange series in terms of mode number, which allows one to find analytical expressions for the coefficients of that series. This method is applied to evaluating the coefficients of mode index distribution for the step-index and four-layer step-index profiles.
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Pogossian, S.P. A new approach to determining the waveguide mode index distribution. Opt Quant Electron 25, 417–422 (1993). https://doi.org/10.1007/BF00420583
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DOI: https://doi.org/10.1007/BF00420583