We propose a volume holographic storage scheme, spatioangular multiplexing, which is a
hybrid of both angular and spatial multiplexing. We describe the recording procedure, for a …

Holographic recording experiments are performed in iron-doped photorefractivc LiNbO3
using twostep (light wavelengths λ= 1064 nm and λ= 532 nm) excitations. Variations of Fe2+ …

Holograms are thermally fixed in photorefractive lithium niobate crystals, ie, they are
recorded at temperatures between 130 and 180 C. The setup is actively stabilized during …

Light-induced refractive index changes—so-called photorefractive effects—in inorganic
electro-optic crystals were discovered by Ashkin et al. in 1966 [1]. Though in the beginning …

We demonstrate nonvolatile storage of femtosecond pulses in a photorefractive LiNbO_3
crystal with recording and readout of spectral holograms at wavelengths of 460 and 920 …

A series of LiNbO3 crystals doped with various concentrations of ZnO and fixed
concentrations of RuO2 and Fe2O3 have been grown by the Czochralski method from the …

"'~ index/grating Page 1 Volume 68, number 3 OPTICS COMMUNICATIONS 1 October 1988
DYNAMICS OF HOLOGRAM READOUT IN PHOTOREFRACTIVE CRYSTALS FOR BROKEN …

The diffraction efficiency of M holograms superimposed in the volume of the recording
medium is proportional to 1/M^ 2. We present a method, based on nondestructive localized …

Wavelength multiplexed holograms using a Ce: Fe: doped LiNbO 3 crystal with a visible-
light tunable diode laser are reported. The advantages of wavelength multiplexed reflection …

Holographic gratings in photorefractive crystals that are based on charge redistribution
inevitably decay as a result of ionic and electronic conduction. Under certain and restricted …