Fast duplication of diffractive storage device for mass production

An apparatus for duplicating holographic memory comprising:

• a master memory device having a page of information stored thereon;
• an unexposed memory device adjacent and parallel to the master memory device, the unexposed and master memory devices being separated by a gap;
• an aperture unit disposed in the gap having a plurality of dynamic slits wherein each dynamic slit corresponds to the individual page in the master, the aperture unit being located in front of the master memory device such that the opening corresponds to the page of information;
• and
• a light source generating a input beam that transfers memory data from the master memory device to the unexposed memory device, and a reference beam for registering the data in the unexposed memory device.

A method for duplicating holographic memory comprising:

• providing a master memory device having a page of information stored thereon;
• providing an unexposed memory device adjacent and parallel to the master memory device, the unexposed and master memory devices being separated by a gap;
• disposing an aperture unit in the gap having a plurality of dynamic slits wherein each dynamic slit corresponds to an individual column of pages of memory in the master, the aperture unit being located in front of the master memory device such that the opening corresponds to a selected page of information;
• and
• generating n input beam from a light source that transfers memory data from the master memory device to the unexposed memory device, and a reference beam for registering the data in the unexposed memory device.

A system comprising:

• a laser device generating a coherent light;
• an optical unit connected to the laser device to collimate the laser light beam;
• and
• a duplication device connected to the optical unit to receive the collimated laser light beam, the duplicating device comprising:
• a master memory device having a page of information stored thereon,
• an unexposed memory device adjacent and parallel to the master memory device, the unexposed and master memory devices being separated by a gap, and
• an aperture unit in the gap having a plurality of dynamic slits wherein each dynamic slit corresponds to the page of memory in the master, the aperture unit being located in front of the master memory device such that the opening corresponds to the page of information;
• a collimated light beam from the optical unit that transfers memory data from the master memory device to the unexposed memory device;
• and
• a reference beam from the optical unit for registering the data in the unexposed memory device.