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Proceedings Paper

Servo control with a flat glass tilt in pickup actuator for holographic data storage
Author(s): Sungphil Kim; Seok Ho Song; Pill Soo Kim; Jideog Kim; Hong-Seok Lee
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Paper Abstract

In order to read out correct data from a disk-type holographic storage system, it is very important to implement a servo control in pickup modules, like as in conventional CD-ROM and DVD-ROM. We propose a novel servo-control method by use of a glass-plate on optical axis, which is able to compensate readout errors mainly coming from mechanical wobbling of the holographic disk. By rotating the glass-plate within ± 10 degrees, we can reduce the readout position-errors of ± 200 μm to ± 15 μm.

Paper Details

Date Published: 1 July 2003
PDF: 5 pages
Proc. SPIE 4988, Advanced Optical Data Storage, (1 July 2003); doi: 10.1117/12.474794
Show Author Affiliations
Sungphil Kim, Hanyang Univ. (South Korea)
Seok Ho Song, Hanyang Univ. (South Korea)
Pill Soo Kim, Hanyang Univ. (South Korea)
Jideog Kim, Samsung Advanced Institute of Technology (South Korea)
Hong-Seok Lee, Samsung Advanced Institute of Technology (South Korea)

Published in SPIE Proceedings Vol. 4988:
Advanced Optical Data Storage
Hans J. Coufal; Alan E. Craig; Zameer U. Hasan, Editor(s)

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