Resumo

MARTINEZ-MARTINEZ, L. O.; HERNANDEZ-HERNANDEZ, E.  e  STEPANOV, S.. On polarization of the fluorescence in erbium-doped fibers. Rev. mex. fis. [online]. 2013, vol.59, n.4, pp.302-308. ISSN 0035-001X.

Theoretical evaluations of polarization degree of the fluorescence excited in erbium doped fibers (EDF) dependence on the excitation light power are presented. In calculations we use the model of randomly oriented and not interacting Er³⁺ ions. Assumption of the reduced optical anisotropy of the individual ions (with the absorption/emission cross-sections described with the ellipsoids) is shown to be necessary to get a reasonable agreement with the existing experimental data. Similar values of the anisotropy parameters (0.6-0.7) are also utilized to explain the experimental data on polarization hole burning in EDF earlier.

Palavras-chave : Erbium doped fibers; polarization hole burning; fluorescence.

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