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
Scott Campbell, Pochi Yeh, Claire Gu, Shuian Huei Lin, Chau-Jern Cheng, and Ken Y. Hsu, "Optical restoration of photorefractive holograms through self-enhanced diffraction," Opt. Lett. 20, 330-332 (1995)