Crosstalk in volume holographic memory

Author

Yi, Xianmin ; Yeh, Pochi ; Gu, Claire ; Campbell, Scott

Author_Institution

Dept. of Electr. & Comput. Eng., California Univ., Santa Barbara, CA, USA

Volume

87

Issue

11

fYear

1999

fDate

11/1/1999 12:00:00 AM

Firstpage

1912

Lastpage

1930

Abstract

Crosstalk noise, due to the finite dimension of the recording medium, is a fundamental limitation to storage capacity in volume holographic memory. We present a general theoretical analysis on the crosstalk noise in angle- and wavelength-multiplexed volume holographic memory systems. Results on storage capacity and its dependence on hologram separation and required signal-to-noise ratio are obtained and discussed. Crosstalk noise may also arise from the expansion or shrinkage of the storage medium during and after the hologram recording process. Its effects, including Bragg mismatch, pixel displacement and impulse broadening, are analyzed for Fourier-plane holographic memories. Complete compensation and optimization to eliminate or reduce these effects are presented and discussed

Keywords

holographic storage; optical crosstalk; optical noise; wavelength division multiplexing; Fourier-plane holographic memories; angle-multiplexed volume holographic memory systems; crosstalk noise; finite dimension; fundamental limitation; hologram recording process; hologram separation; impulse broadening; optimization; pixel displacement; recording medium; signal-to-noise ratio; storage capacity; volume holographic memory crosstalk; wavelength-multiplexed volume holographic memory systems; Diffraction; Geometrical optics; Holographic optical components; Holography; Optical crosstalk; Optical noise; Polymers; Signal to noise ratio; Technological innovation; Temperature;

fLanguage

English

Journal_Title

Proceedings of the IEEE

Publisher

ieee

ISSN

0018-9219

Type

jour

DOI

10.1109/5.796354

Filename

796354