Abstract

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 holograms in a doubly doped ${\mathrm{LiNbO}}_3$ 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

Localized holographic recording in doubly doped lithium niobate

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