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Proceedings Paper

Top illuminator design for 2D parallel readout in a 3D multilayer optical data storage system
Author(s): Wenyi Feng; Edwin P. Walker; Haichuan Zhang; Yi Zhang; Alexander S. Dvornikov; Sadik C. Esener
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Paper Abstract

To achieve very high data rates in 3-D multilayer optical data storage systems, a novel approach is investigated to read out in parallel multiple tracks at different layers simultaneously. Data bits at different layers are arranged as titled data pages inside the disk. A uniform optical beam sheet is generated to illuminate the desired data page from the top of the disk, and a depth transfer imaging system is used to collect the fluorescence of the written bits within the data page to a detector array. The performance of the illumination optics has been experimentally evaluated and optimized by aberration compensation and equalization of irradiance distribution on the entire data page. Other important factors including reflection loss, sensitivity to disk quality, and servo requirements of disk wobbling are analyzed.

Paper Details

Date Published: 23 January 2002
PDF: 10 pages
Proc. SPIE 4459, Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications VII, and Optical Data Storage, (23 January 2002); doi: 10.1117/12.454038
Show Author Affiliations
Wenyi Feng, Call/Recall, Inc. (United States)
Edwin P. Walker, Call/Recall, Inc. (United States)
Haichuan Zhang, Call/Recall, Inc. (United States)
Yi Zhang, Call/Recall, Inc. (United States)
Alexander S. Dvornikov, Call/Recall, Inc. (United States)
Sadik C. Esener, Call/Recall, Inc. (United States)


Published in SPIE Proceedings Vol. 4459:
Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications VII, and Optical Data Storage
Shizhuo Yin; Francis T. S. Yu; Hans J. Coufal; Hans J. Coufal, Editor(s)

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