The diffraction efficiency of M holograms superimposed in the volume of the recording medium is proportional to 1/M2. We present a method, based on nondestructive localized holograms in a doubly doped LiNbO3 crystal, that allows us to also record M holograms in the same volume without an exposure schedule or a diffraction efficiency that has 1/M dependence. We compare experimentally the final diffraction efficiency obtained with the localized and distributed recording methods.
© 2000 Optical Society of America
Christophe Moser, Irena Maravic, Benjamin Schupp, Ali Adibi, and Demetri Psaltis, "Diffraction efficiency of localized holograms in doubly doped LiNbO3 crystals," Opt. Lett. 25, 1243-1245 (2000)