Full Content is available to subscribers

Subscribe/Learn More  >
Proceedings Article

Digital data storage in a phase-encoded holographic memory system: data quality and security

[+] Author Affiliations
Gernot Berger, Kai-Oliver Mueller, Cornelia Denz

Univ. Muenster (Germany)

Istvan Foldvari, Agnes Peter

Research Institute for Solid State Physics and Optics (Hungary)

Proc. SPIE 4988, Advanced Optical Data Storage, 104 (June 30, 2003); doi:10.1117/12.501107
Text Size: A A A
From Conference Volume 4988

  • Advanced Optical Data Storage
  • Hans J. Coufal; Alan E. Craig; Zameer U. Hasan
  • San Jose, CA | January 25, 2003

abstract

We review the crucial properties of a phase-encoded volume holographic storage system in terms of data quality and security, which are the key issues of any bulk memory system. Two major problems which need to be tackled in holographic storage systems in terms of data quality are the hologram erasure during readout and the data encoding schemes for error-free reconstruction. We present a novel storage material, (bismuth tellurite crystals - Bi2TeO5), which has the potential to overcome the volatility problem and avoiding the need of any further fixing. Regarding data encoding schemes, we present a general approach of gray scale modulation coding in order to improve the data capacity in comparison to normal modulation coding, while the bit error rate maintains low. Data security in a phase encoded system can be realized by exploiting its special multiplexing characteristics. We present different encryption techniques and investigate their decryption probability.

© (2003) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Gernot Berger ; Kai-Oliver Mueller ; Cornelia Denz ; Istvan Foldvari and Agnes Peter
"Digital data storage in a phase-encoded holographic memory system: data quality and security", Proc. SPIE 4988, Advanced Optical Data Storage, 104 (June 30, 2003); doi:10.1117/12.501107; http://dx.doi.org/10.1117/12.501107


Access This Proceeding
Sign in or Create a personal account to Buy this proceeding ($15 for members, $18 for non-members).

Figures

Tables

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging & repositioning the boxes below.

Related Book Chapters

Topic Collections

Advertisement
  • Don't have an account?
  • Subscribe to the SPIE Digital Library
  • Create a FREE account to sign up for Digital Library content alerts and gain access to institutional subscriptions remotely.
Access This Proceeding
Sign in or Create a personal account to Buy this proceeding ($15 for members, $18 for non-members).
Access This Proceeding
Sign in or Create a personal account to Buy this article ($15 for members, $18 for non-members).
Access This Chapter

Access to SPIE eBooks is limited to subscribing institutions and is not available as part of a personal subscription. Print or electronic versions of individual SPIE books may be purchased via SPIE.org.