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Proceedings Paper

Optical Focus Servo For Optical Disk Mass Data Storage System Application
Author(s): A. M. Earman
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Paper Abstract

An optical focus servo system has been designed for use with an Optical Disc Mass Data Storage system. The servo has been designed for optimum accuracy of focus control with minimal circuit components and including several features convenient to this application. The servo system exhibits correctibility of 54dB at the fundamental rotation frequency of 30 rev/sec and a system bandwidth of areater than 2 KHz. The discussion centers on the requirements of this system and emphasizes the developmental analyses, approaches and results of research in this area. The optical, mechanical and electrical considerations of the system are discussed in some detail concluding with the final design and projected views of more advanced approaches and applications.

Paper Details

Date Published: 27 May 1982
PDF: 5 pages
Proc. SPIE 0329, Optical Disk Technology, (27 May 1982); doi: 10.1117/12.933379
Show Author Affiliations
A. M. Earman, RCA Government Communications Systems (United States)

Published in SPIE Proceedings Vol. 0329:
Optical Disk Technology
Robert A. Sprague, Editor(s)

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