Growth and nonvolatile holographic storage properties of stoichiometric Eu:Fe:LINbO3 crystals

Congruent Eu:Fe:LiNbO 3 crystals doped with or without fluxing agent K 2 O have been grown by TSSG method and the Czochralski method, respectively. The holographic storage properties, diffraction efficiency, response time and photoconduction, of the two Eu:Fe:LiNbO 3 crystals are characterized by two-wave coupling experiment. Eu:Fe:LiNbO 3 doped with fluxing agent K 2 O (Eu:Fe:SLN) has the higher photorefractive performances than congruent Eu:Fe:LiNbO 3 (Eu:Fe:CLN). The nonvolatile holographic storage is realized in Eu:Fe:SLN crystals by using He-Ne laser as the light source and ultraviolet as the gating light.