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Proceedings Paper

19.8-GB ROM disk readout using a 0.7-NA single objective lens and a violet laser diode
Author(s): Tetsuya Kondo; Atsushi A.H. Hayami; Tsuyoshi Oki; Junichiro J.T. Tonami; Eiji Nakagawa; Takeo Kojima; Makoto M. Itonaga
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Paper Abstract

The noise reduced disc and the advanced signal reproduction system with the asymmetry compensatory function enhance the disc capacity up to 19.8 GBytes per DVD size. The noise was reduced by applying Aluminum based multi-component alloy for the reflective layer, moreover all the loops in the system accurately function even under the signal asymmetric condition by using the newly developed Error Feedback type PRML. The error rate characteristics versus disc tilts suggest that the ROM disc system has sufficient performance for the practical use.

Paper Details

Date Published: 18 September 2000
PDF: 7 pages
Proc. SPIE 4090, Optical Data Storage 2000, (18 September 2000); doi: 10.1117/12.399371
Show Author Affiliations
Tetsuya Kondo, Victor Co. of Japan, Ltd. (Japan)
Atsushi A.H. Hayami, Victor Co. of Japan, Ltd. (Japan)
Tsuyoshi Oki, Victor Co. of Japan, Ltd. (Japan)
Junichiro J.T. Tonami, Victor Co. of Japan, Ltd. (Japan)
Eiji Nakagawa, Victor Co. of Japan, Ltd. (Japan)
Takeo Kojima, Victor Co. of Japan, Ltd. (Japan)
Makoto M. Itonaga, Victor Co. of Japan, Ltd. (Japan)


Published in SPIE Proceedings Vol. 4090:
Optical Data Storage 2000

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