Dynamic speckle multiplexing scheme in volume holographic data storage and its realization | Zendy

Qingsheng He | Zendy; Jinnan Wang | Zendy; Jiangang Wang | Zendy; Minxian Woo | Zendy; Guofan Jin | Zendy

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Dynamic speckle multiplexing scheme in volume holographic data storage and its realization

Author(s) -

Qingsheng He,

Jinnan Wang,

Jiangang Wang,

Minxian Woo,

Guofan Jin

Publication year - 2003

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.11.000366

Subject(s) - speckle pattern , multiplexing , holography , optics , diffuser (optics) , speckle noise , holographic data storage , computer science , electronic speckle pattern interferometry , realization (probability) , computer data storage , physics , telecommunications , mathematics , computer hardware , light source , statistics

Dynamic speckle multiplexing scheme in volume holographic data storage is proposed, since it offers a novel multiplexing geometry, and could be combined with other schemes to make the full use of the dynamic ranges. In this scheme, a random diffuser is added in the original reference path of the classical 90 masculine setup. In this paper, we analyzed the propagation of the speckle field in the holographic system and established the related theoretical model based on the dynamic speckle auto-correlation function and diffraction theory. We successfully realized the dynamic speckle multiplexing in our experimental system and reached a storage density of 4.6 Gigapixels/cm3 based on the DPL laser source.

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