1 July 2003 Servo control with a flat glass tilt in pickup actuator for holographic data storage
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Proceedings Volume 4988, Advanced Optical Data Storage; (2003); doi: 10.1117/12.474794
Event: Integrated Optoelectronics Devices, 2003, San Jose, CA, United States
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.
© (2003) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Sungphil Kim, Seok Ho Song, Pill Soo Kim, Jideog Kim, Hong-Seok Lee, "Servo control with a flat glass tilt in pickup actuator for holographic data storage", Proc. SPIE 4988, Advanced Optical Data Storage, (1 July 2003); doi: 10.1117/12.474794; https://doi.org/10.1117/12.474794
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KEYWORDS
Servomechanisms

Holography

Data storage

Sensors

Detector arrays

Holograms

Signal detection

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