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Holographic reflection gratings were stored in a PVA/AA based photopolymer material using symmetrical geometry. Diffraction efficiency of the gratings was measured and a curing process was applied in the gratings to fix them. The aim of this paper is to analyze the stability of stored gratings with over time, after to apply the curing process, comparing the results obtained with and without curing.This work was supported by “Ministerio de Ciencia e Innovación” (Spain) under projects FIS2011-29803-C02-01 and FIS2011-29803-C02-02, by the “Generalitat Valenciana” under project PROMETEO/2011/021 and by the University of Alicante under project GRE09-10

Study of the stability in holographic reflection gratings recorded in PVA/AA-based photopolymer