Absorption effects in photorefractive volume-holographic memory systems. II. Material heating

Scott Campbell*, Shiuan-Huei Lin, Xianmin Yi, Pochi Yeh

*Corresponding author for this work

Research output: Contribution to journalArticle

18 Scopus citations

Abstract

We consider how absorption-induced material heating alters the phase profile, the scale, the orientation, and the Bragg matching of volume holograms. We derive theoretical equations that consider the prisming, the lensing, and the Bragg mismatching that occur during material heating and compare these with experimental observations. From our Bragg-mismatching considerations we show how both read beam angle and wavelength need to be dithered for proper compensation of volume holograms for material-heating effects. Our results indicate that material heating in volume-holographic memory systems poses a severe threat to system performance. This threat is shown to be very significant in Fourier plane holograms but only moderately significant in image plane holograms.

Original languageEnglish
Pages (from-to)2218-2228
Number of pages11
JournalJournal of the Optical Society of America B: Optical Physics
Volume13
Issue number10
DOIs
StatePublished - 1 Jan 1996

Keywords

  • Absorption
  • Bragg detuning
  • Material heating
  • Volume-holographic memory

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