Abstract

For the first time to our knowledge, we demonstrate the use of self-enhanced diffraction to optically restore weak dynamic volume holograms. This restoration process is achieved through the use of a novel beam-toggling scheme that significantly enhances the steady-state diffraction efficiency of volume index gratings stored in photorefractive media. Experiments demonstrating and confirming theory are presented and discussed.

© 1995 Optical Society of America

Tilting of holograms in photorefractive Sr_0.61Ba_0.39Nb₂O₆ crystals by self-diffraction

K. Buse, S. Kämper, J. Frejlich, R. Pankrath, and K. H. Ringhofer
Opt. Lett. 20(21) 2249-2251 (1995)

Fixing of photorefractive volume holograms in K₁₋yLiyTa₁₋xO₃

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