Experimental holographic read-write memory using 3-d storage.

A mockup of an experimental 3-D holographic read-write memory is described. The storage technique uses superimposed holographic pages in a thick photosensitive medium. Access to any page is obtained by reference beam rotation about each selected page. The experimental arrangement consists of a partially filled memory plane. The thick erasable storage medium used is iron-doped lithium niobate. The paper also includes experimental results on the deflector device, page composer, and readout systems.