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  1. 1 2011

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  1. 1 Puscas N.

  2. 1 Vasile G.

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Evaluation of losses and group effective refractive index of Er3+:Ti:LiNbO3 optical waveguides

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Vasile G., Puscas N.
Open Physics
|
2011
|
vol. 9
|
issue 3
852-856
EN
In this paper, we report some experimental results concerning several types of loss measurements of Er3+:Ti:LiNbO3 optical waveguides by using optical methods. Using the Fabry-Pérot interferometry method, we evaluated the attenuation coefficient of an optical waveguide resonator for a laser radiation having λ = 1.55 µm. We also evaluated the insertion losses, polarization dependent losses, and coupling with external losses. Additionally, from the transmitted spectra of the symmetrical monomode Fabry-Pérot optical waveguide resonator, we were able to evaluate the value of the group effective refractive index.
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