%0 Journal Article
%A Melle Hernández, Sonia
%A Gómez Calderón, Óscar
%A Zhuo, Zhong C.
%A Antón Revilla, Miguel Ángel
%A Carreño Sánchez, Fernando
%T Dynamic population gratings in highly doped erbium fibers
%D 2011
%@ 0740-3224
%U https://hdl.handle.net/20.500.14352/44626
%X The efficiency of the dynamic population gratings recorded in highly doped erbium fibers has been studied. We find that the grating response increases with optical density, although the presence of erbium ion pairs in fibers with ion density of the order of 6:3 × 1025 m−3 degrades the grating efficiency. The experimental results have been reproduced including inhomogeneous upconversion processes in the nonlinear coupled-wave equations.
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