1. Optical memories implemented with photorefractive media
- Author
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Matthew C. Bashaw and Lambertus Hesselink
- Subjects
3D optical data storage ,Computer science ,business.industry ,Holography ,Photorefractive effect ,Holographic data storage ,Atomic and Molecular Physics, and Optics ,Electronic, Optical and Magnetic Materials ,law.invention ,Crystal (programming language) ,law ,Wavelength-division multiplexing ,Computer data storage ,Systems architecture ,Electronic engineering ,Electrical and Electronic Engineering ,Telecommunications ,business - Abstract
We consider holographic optical data storage systems implemented with photorefractive media. Our viewpoint emphasizes the close interaction between materials and device issues. First we discuss our current understanding of photorefractive physics as it pertains to the holographic data storage problem. Then we consider architecture issues, including angular, phase-encoded, and wavelength-multiplexing techniques, and several approaches to increasing the signal-to-noise ratio of the recordings. Finally, we discuss materials issues related to crystal growth and how crystal quality impacts the performance of data storage systems. Both bulk and fibre crystal growth techniques are reviewed.
- Published
- 1993
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