Phase-conjugate replay for a-axis strontium barium niobate single-crystal fibers

Bashaw, M. C.; Aharoni, A.; Hesselink, Lambertus

doi:10.1364/ol.18.002059

Cited by 7 publications

(5 citation statements)

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“…Several authors have proposed bypassing these requirements by using phase-conjugate readout of the volume holograms [12][13][14][15]. After the object beam is recorded from the SLM with a reference beam, the hologram is reconstructed with a phase-conjugate (timereversed copy) of the original reference beam.…”

Section: Aspherical Apodizermentioning

confidence: 99%

“…The diffracted wavefront then retraces the path of the incoming object beam in reverse, canceling out any accumulated phase errors. This should allow data pages to be retrieved with high fidelity with a low-performance lens, from storage materials fabricated as multimode fibers [12,13], or even without imaging lenses [14,15] for an extremely compact system.…”

Section: Aspherical Apodizermentioning

confidence: 99%

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Holographic data storage technology

et al. 2000

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Section: Aspherical Apodizermentioning

confidence: 99%

Section: Aspherical Apodizermentioning

confidence: 99%

Holographic data storage technology

et al. 2000

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“…This allows data pages to be retrieved with high fidelity using an inexpensive lens [30,31], or even without imaging lenses for an extremely compact system [32,33].…”

Section: Phase-conjugate Readoutmentioning

confidence: 99%

Holography for information storage and processing

Burr

2003

SPIE Proceedings

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We review recent progress made towards two types of holographic data storage systems. The first offers the potential for simultaneous search of an entire database by performing multiple optical correlations between stored data pages and a search argument [1,2]. This content-addressable retrieval produces one analog correlation score for each stored volume hologram. We review work we have performed on fuzzy encoding techniques, experimental demonstrations of hardware-level database searching, on the measurement of true inner-products, on architectures in which massively-parallel searches could be implemented [3], and on quantifying the inherent speed-fidelity tradeoffs [4]. The second system offers read-write, fast-access data storage. We review systems architectures for extending this high density to high capacity using phase-conjugate readout [5] and signal processing to relieve alignment and distortion constraints [6].

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“…Others have used crystal fibers to store and retrieve holograms using the phase conjugate. 7,8 The focused reference beam spot size is equal to 25 m. To test the concept, we use a crystal slab of LiNbO 3 doped with 0.1-wt. % Fe 2 O 3 with a thickness of 1 mm and a length of 20 mm ͑along the signal beam direction͒ by 10 mm.…”

Section: Selective Erasurementioning

confidence: 99%

Holographic memory with localized recording

Moser

2001

Appl. Opt.

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We experimentally demonstrate and characterize a memory module that features selective page erasure and readout persistence using the localized recording method in doubly doped LiNbO 3 . Pages of information can be selectively erased without partially erasing the whole memory. Data pages can be written over erased pages multiple times. Information is read millions of times before refreshing is required. We quantify the optical quality of the holograms by measuring their signal-to-noise ratio for a memory size up to 100 holograms. A compact phase-conjugate readout architecture is also presented and experimentally demonstrated.

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Phase-conjugate replay for a-axis strontium barium niobate single-crystal fibers

Cited by 7 publications

References 10 publications

Holographic data storage technology

Holographic data storage technology

Holography for information storage and processing

Holographic memory with localized recording

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