Bragg degeneracy of diffraction in photorefractive transmission volume holograms

Research output: Contribution to journalConference articlepeer-review


Here we report our study on Bragg degeneracy in a transmission volume hologram. The Bragg degeneracy generates large crosstalk in an optical storage but nearly one-dimensional shift-invariance in optical correlator. We simulate 2-D distributions of the diffraction lights when the reading beam carries a plane wave or an image. The simulation results offer a clear picture of Bragg diffraction for optical storage and optical correlation in a bulk photorefractive crystal.

Original languageEnglish
Pages (from-to)84-93
Number of pages10
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - 1998
EventPhotorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications IV - San Diego, CA, United States
Duration: 22 Jul 199823 Jul 1998


  • Bragg degeneracy
  • Photorefraction
  • Shift invariance
  • Volume hologram


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