HOLOGRAPHIC STORAGE USING SHIFT MULTIPLEXING

We demonstrate theoretically and experimentally a new multiplexing met hod for volume holographic storage using a single reference beam that is composed of multiple plane waves or is a spherical wave. We multipl ex the holograms by shifting the recording material or the recording/r eadout head. The volume properties of the recording medium allow selec tive readout of holograms stored in successive overlapping locations. High storage densities can be achieved with a relatively simple implem entation by use of the new method.