Abstract
Volumetric media have great potential for meeting future optical data storage demands, but homogeneous media lack internal features for tracking. A novel method of tracking inside homogeneous media is described that uses external reference tracks attached to the media. Several possible configurations for implementing the "slave-servo" concept are described and compared. An optical design for the most promising configuration is presented. This design utilizes a diffractive optical element for dispersion compensation. Modeling describes the limits of device performance and alignment. Early prototype results are presented.
Original language | English (US) |
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Pages (from-to) | 269-278 |
Number of pages | 10 |
Journal | Proceedings of SPIE - The International Society for Optical Engineering |
Volume | 5069 |
DOIs | |
State | Published - 2003 |
Event | Optical Data Storage 2003 - Vancouver, BC, Canada Duration: May 11 2003 → May 14 2003 |
Keywords
- DOE
- Optical data storage
- Servo
- Tracking
- Volumetric media
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering