Digital data storage in a phase-encoded holographic memory system

Data quality and security

G. Berger, K. O. Müller, C. Denz, I. Földvári, A. Péter

Research output: Chapter in Book/Report/Conference proceedingConference contribution

8 Citations (Scopus)

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 - Bi 2TeO5) 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.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsH.J. Coufal, A.E. Craig, Z.U. Hasan
Pages104-111
Number of pages8
Volume4988
DOIs
Publication statusPublished - 2003
EventPROCEEDINGS OF SPIE SPIE - The International Society for Optical Engineering: Advanced Optical Data Storage - San Jose, CA, United States
Duration: Jan 28 2003Jan 29 2003

Other

OtherPROCEEDINGS OF SPIE SPIE - The International Society for Optical Engineering: Advanced Optical Data Storage
CountryUnited States
CitySan Jose, CA
Period1/28/031/29/03

Fingerprint

Digital storage
digital data
data systems
data storage
coding
Modulation
Data storage equipment
Holograms
Security of data
Bismuth
Multiplexing
Bit error rate
Cryptography
modulation
Crystals
volatility
gray scale
bit error rate
multiplexing
fixing

Keywords

  • Data encryption
  • Modulation coding
  • Non-volatile holographic storage
  • Phase-code multiplexing
  • Random phase encoding
  • Volume holography

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Berger, G., Müller, K. O., Denz, C., Földvári, I., & Péter, A. (2003). Digital data storage in a phase-encoded holographic memory system: Data quality and security. In H. J. Coufal, A. E. Craig, & Z. U. Hasan (Eds.), Proceedings of SPIE - The International Society for Optical Engineering (Vol. 4988, pp. 104-111) https://doi.org/10.1117/12.501107

Digital data storage in a phase-encoded holographic memory system : Data quality and security. / Berger, G.; Müller, K. O.; Denz, C.; Földvári, I.; Péter, A.

Proceedings of SPIE - The International Society for Optical Engineering. ed. / H.J. Coufal; A.E. Craig; Z.U. Hasan. Vol. 4988 2003. p. 104-111.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Berger, G, Müller, KO, Denz, C, Földvári, I & Péter, A 2003, Digital data storage in a phase-encoded holographic memory system: Data quality and security. in HJ Coufal, AE Craig & ZU Hasan (eds), Proceedings of SPIE - The International Society for Optical Engineering. vol. 4988, pp. 104-111, PROCEEDINGS OF SPIE SPIE - The International Society for Optical Engineering: Advanced Optical Data Storage, San Jose, CA, United States, 1/28/03. https://doi.org/10.1117/12.501107
Berger G, Müller KO, Denz C, Földvári I, Péter A. Digital data storage in a phase-encoded holographic memory system: Data quality and security. In Coufal HJ, Craig AE, Hasan ZU, editors, Proceedings of SPIE - The International Society for Optical Engineering. Vol. 4988. 2003. p. 104-111 https://doi.org/10.1117/12.501107
Berger, G. ; Müller, K. O. ; Denz, C. ; Földvári, I. ; Péter, A. / Digital data storage in a phase-encoded holographic memory system : Data quality and security. Proceedings of SPIE - The International Society for Optical Engineering. editor / H.J. Coufal ; A.E. Craig ; Z.U. Hasan. Vol. 4988 2003. pp. 104-111
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