We demonstrate a novel apodization technique for holographic data storage using two-photon recording in stoichiometric lithium niobate. The gating light-intensity profile is used to achieve grating apodization inside the bulk of the crystal during recording in the transmission geometry. Experimental Bragg-selectivity curves and theoretical fits indicate a >20-dB drop in multiplexing cross talk.
© 1998 Optical Society of America
(030.5290) Coherence and statistical optics : Photon statistics
(090.0090) Holography : Holography
(160.3730) Materials : Lithium niobate
(220.1230) Optical design and fabrication : Apodization
David Lande, Sergei S. Orlov, and Lambertus Hesselink, "Two-photon apodization in lithium niobate," Opt. Lett. 23, 1399-1401 (1998)