Holographic data storage 1207

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Information about Holographic data storage 1207
Technology

Published on February 16, 2012

Author: prabhakar9885

Source: slideshare.net

Description

My topic for technical seminar.

Holographic Data Storage Capacity : 6 Terabyte Access Speed : 10 Gb/sec Writing speed: 300 Kb/sec B.Prabhakar, 08311A1207, IT-A. Thanks to Taraka Vineeth Naidu for his support in preparing the slides.

Optical storage devices for storing data. CDs, DVDs and Blu-ray disks. Storage capacity: 600MB – 128GB. Stores bits of data on the surface of the recording medium. Introduction

Optical storage devices for storing data.

CDs, DVDs and Blu-ray disks.

Storage capacity: 600MB – 128GB.

Stores bits of data on the surface of the recording medium.

Storage technologies have to evolve, to keep pace with increasing customer demand. Holographic Data Storage(HDS). Theoritical capacity, 1-6TB (terabyte ). Possibility of storing 10-100TB of data in a single disk. Introduction

Storage technologies have to evolve, to keep pace with increasing customer demand.

Holographic Data Storage(HDS).

Theoritical capacity, 1-6TB (terabyte ).

Possibility of storing 10-100TB of data in a single disk.

A three-dimensional image formed by the interference of light beams from a laser or other coherent light source.   The image changes with respect to the position and orientation of the viewing system. Divisibility property. What is Hologram?

A three-dimensional image formed by the interference of light beams from a laser or other coherent light source.

  The image changes

with respect to the position and

orientation of the viewing system.

Divisibility property.

Proposed in the year 1963. Research started in 1970s. Expected to store 1TB data in a sugar-crystal sized storage medium. HDS stores data beneath the surface, in the volume of the recording medium. More data will be stored. High data access speed. Holographic data storage Access Time Data Transfer Rate Storage Capacity Archival lifetime 2.4  s 10 GB/s 400 Mbits/cm 2 50 years

Proposed in the year 1963.

Research started in 1970s.

Expected to store 1TB data in a sugar-crystal sized storage medium.

HDS stores data beneath the surface, in the volume of the recording medium.

More data will be stored.

High data access speed.

Currently, Inphase Technologies is working on HVD. Components: Blue-green argon laser Beam splitters to spilt the laser beam Mirrors to direct the laser beams LCD panel (spatial light modulator) Lenses to focus the laser beams Lithium-niobate crystal or photopolymer Charge-coupled device (CCD) camera Holographic Versatile Disc

Currently, Inphase Technologies is working on HVD.

Components:

Blue-green argon laser

Beam splitters to spilt the laser beam

Mirrors to direct the laser beams

LCD panel (spatial light modulator)

Lenses to focus the laser beams

Lithium-niobate crystal or photopolymer

Charge-coupled device (CCD) camera

spatial light modulator

Reading data

Drive 20MB/s-160 Mb/s transfer rate. 405nm Laser wavelength Media 1.5mm recording material 130 mm diameter disk 300GB capacity 50 year archive life Tapestry 300r

Drive

20MB/s-160 Mb/s transfer rate.

405nm Laser wavelength

Media

1.5mm recording material

130 mm diameter disk

300GB capacity

50 year archive life

No suitable recording media existed. SOLUTION: T apestry, a high-performance, proprietary material with proven high-density storage capabilities, was invented by InPhase Technologies. Challenges faced

No suitable recording media existed. SOLUTION: T apestry, a high-performance, proprietary material with proven high-density storage capabilities, was invented by InPhase Technologies.

Lasers were costly and unreliable. SOLUTION DVD recording technologies require the availability of high-quality, price-competitive lasers. InPhase Technologies takes advantage of available red and blue lasers which are used in other high-volume products. Challenges faced

Lasers were costly and unreliable. SOLUTION DVD recording technologies require the availability of high-quality, price-competitive lasers. InPhase Technologies takes advantage of available red and blue lasers which are used in other high-volume products.

If too many pages are stored in one crystal, the strength of each hologram is diminished.  Align all of the HVD components in a low-cost system. Still existing challenges

If too many pages are stored in one crystal, the strength of each hologram is diminished. 

Align all of the HVD components in a low-cost system.

Technology has no Limit

Protien-coated disk Principal: coating a normal DVD with a special light-sensitive protein made from a genetically altered microbe. Storage: 50TB Possibility: 240TB Developed by Professor Venkatesan Renugopalakrishnan, formerly of Harvard Medical School and Florida International University. Conclusion

Protien-coated disk

Principal: coating a normal DVD with a special light-sensitive protein made from a genetically altered microbe.

Storage: 50TB

Possibility: 240TB

Developed by Professor Venkatesan Renugopalakrishnan, formerly of Harvard Medical School and Florida International University.

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