Evaluation of losses and group effective refractive index of Er3+:Ti:LiNbO3 optical waveguides |
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| Authors: | Georgiana C Vasile and Niculae N Puscas |
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| Institution: | (1) Modern Education Technical Department, Dalian Polytechnic University, 1# Qinggongyuan Road, Dalian, 116034, P.R. China;(2) School of Vocational Technology, Liaoning Shihua University, Fushun, 113001, P.R. China;(3) College of Traffic, Jilin University, Changchun, 130012, P.R. China |
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| Abstract: | 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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