Improvements in the data fidelity of photorefractive memories

Mark A. Neifeld

Research output: Contribution to journalConference articlepeer-review


Parallel error decoding is discussed for 2D page access optical memory. Both parallel space-domain and parallel spectral-domain Reed-Solomon decoders are discussed and compared with conventional serial decoding implementations. The parallel approach is found to yield information rates of nearly 1012 bps. A methodology is also presented for 4f optical storage system design. This approach allows the photorefractive crystal volume to be minimized while maintaining the maximum storage capacity that is consistent with a given SNR requirement.

Original languageEnglish (US)
Pages (from-to)67-70
Number of pages4
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - Aug 18 1995
EventPhotorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications 1995 - San Diego, United States
Duration: Jul 9 1995Jul 14 1995


  • Error correction
  • Holographic storage
  • Optical design
  • Optical memory
  • Parallel access
  • Parallel decoding
  • Photorefractives

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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