Method and apparatus for diffractive information storage
AssigneeResearch Investment Network, Inc.
InventorsIdriss El Hafidi, Romualda Grzymala, Patrick Meyrueis, Houssine El Soubari
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Abstract
A petabyte diffractive storage system stores information on a diffractive storage tape. A light component generates a large reference beam to cover the plurality of points of the diffractive storage tape so as to simultaneously interfere with the plurality of object beams creating a plurality of packets of information at the plurality of points. Also disclosed is a terabyte diffractive storage that system reads information from a diffractice storage disk having a plurality of tracks. A plurality of micro-mirrors directs the read beam to one of said plurality of tracks.
Claims100
A diffractive storage system for storing information on a diffractive storage tape, comprising:
- a plurality of object beams focused simultaneously onto a plurality of points of said diffractive storage tape;
- and
- a coherent light source generating a large reference beam to cover said plurality of points of said diffractive storage tape so as to simultaneously interfere with said plurality of object beams to store a plurality of packets at said plurality of points
- wherein the reference beam is angularly multiplexed to store a plurality of packets at each of said plurality of points.
A diffractive storage system for reading information from a diffractive storage tape, comprising:
- a coherent light source generating a large reference beam to illuminate a plurality of points of said diffractive storage tape so as to simultaneously create a plurality of read beams reconstructing a plurality of packets at said plurality of points;
- and
- a plurality of detectors configured to receive said plurality of reads beams
- wherein the reference beam is angularly multiplexed to read a plurality of packets at each of said plurality of points.
A diffractive storage method for storing information onto a diffractive storage tape comprising a plurality of tracks, comprising the steps of:
- forming a large reference laser beam configured to cover said plurality of tracks;
- focusing said large reference beam onto said diffractive storage tape at one of a plurality of angles;
- focusing a plurality of object beams onto said diffractive storage tape so as to interfere with said large reference beam so that a plurality of packets are stored in said diffractive storage tape;
- and
- focusing said large reference beam onto said diffractive storage tape at another one of said plurality of angles and repeating the previous step so as to store additional packets at the same locations of diffractive storage tape.
A diffractive storage method for reading information from a diffractive storage tape, comprising the steps of:
- forming a large reference laser beam configured to cover a plurality of points of said diffractive storage tape so as to simultaneously create a plurality of read beams to retrieve a plurality of packets at said plurality of points;
- focusing said large reference beam onto said diffractive storage tape at one of a plurality of angles;
- detecting said plurality of reads beams;
- and
- focusing said large reference beam onto said diffractive storage tape at another one of said plurality of angles and repeating the previous step so as to retrieve additional packets at said plurality of points.
A diffractive storage system for reading information by reflection from a diffractive storage disk having a plurality of concentric tracks storing said information, comprising:
- a coherent light source configured to generate a read beam;
- a plurality of micro-mirrors directing said read beam to a point on one of said plurality of tracks;
- and
- a detector configured to detect a diffractive portion of said read beam reflected from said diffractive storage disk from said point on one of said tracks of said diffractive storage disk
- wherein each of said micro-mirrors directs said read beam to a selected one of a plurality of angles so that said read beam impinges on said point of said optical disk at said selected angle in order to illuminate a packet.
A diffractive storage method for reading information by reflection from a diffractive storage disk having a plurality of tracks, comprising the steps of:
- generating a light read beam from a light source;
- directing with a plurality of micro-mirrors said read beam to a point on one of said plurality of tracks at one of a plurality of angles;
- and
- detecting a diffractive portion of said read beam reflected by said diffractive storage disk from said point on said one of said tracks of said diffractive storage disk.
A diffractive storage system for reading information by transmission from a diffractive storage disk having a plurality of tracks, comprising:
- a coherent laser source configured to generate a read beam;
- a plurality of micro-mirrors directing said read beam to a point on one of said plurality of tracks;
- and
- a detector configured to detect a diffractive portion of said read beam transmitted through said diffractive storage disk from said point on one of said tracks of said diffractive storage disk
- wherein each of said micro-mirrors directs said read beam to a selected one of a plurality of angles so that said read beam impinges on said point of said optical disk at said selected angle in order to illuminate a packet.
A diffractive storage method for reading information by transmission from a diffractive storage disk having a plurality of tracks, comprising the steps of:
- generating a parallel coherent read beam;
- directing with a plurality of micro mirrors said read beam to a point on one of said plurality of tracks at one of a plurality of angles;
- and
- detecting a diffractive portion of said read beam transmitted through said diffractive storage disk from said point on said one of said tracks of said diffractive storage disk.
A hybrid diffractive storage system for reading information from a diffractive storage disk having a plurality of tracks on each side of said storage disk, comprising:
- a coherent light source configured to generate a read beam;
- a plurality of micro-mirrors directing said read beam to a point on one of said plurality of tracks;
- a first detector configured to detect a diffractive portion of said read beam reflected from said point of one of said tracks;
- and
- a second detector configured to detect a diffractive portion of said read beam transmitted through said diffractive storage disk from another one of said points on one of said tracks on the other side of said diffractive storage disk
- wherein each of said micro-mirrors directs said read beam to a selected one of a plurality of angles so that said read beam impinges on said point of said optical disk at said selected angle in order to illuminate a packet of information.
A hybrid diffractive storage method for reading information from a diffractive storage disk having a plurality of tracks on each side of said disk, comprising the steps of:
- generating a coherent read beam;
- directing with a plurality of micro-mirrors said read beam to a point on one of said plurality of tracks at one of a plurality of angles;
- detecting a first diffractive portion of said light beam reflected by said diffractive storage disk from one of said points on one of said tracks of said diffractive storage disk;
- and
- detecting a second diffractive portion of said read beam transmitted through said diffractive storage disk from another one of said points on said tracks of said diffractive storage disk.
Dependencies are inferred from the claim text.