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Optica Publishing Group
  • Journal of Lightwave Technology
  • Vol. 20,
  • Issue 8,
  • pp. 1573-
  • (2002)

The Effect of the Proton-Concentration-to-Refractive-Index Models on the Propagation Properties of APE Waveguides

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Abstract

This work analyzes the effect of the proton-concentration-to-refractive-index relation on the computation of waveguiding properties of well-annealed proton-exchanged channel waveguides fabricated in a LiNbO3 substrate. Several of such relations are presented in literature. The application of these different relations in the numerical analysis results in a very different propagation behavior for the waveguide. For comparison purposes, an empirical relation that fits the published refractive-index-versus-proton-concentration experimental data for the α crystalline phase is also used.

[IEEE ]

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