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Proceedings Paper

10 Gb/in.2 MO disk using blue laser
Author(s): K. Kawase; Yoshihiro Muto; Kazunori Yamaguchi; N. Ando; Yasuaki Maeda; Masahiro Yamada; Masayoshi Kanno
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Paper Abstract

We studied a high areal density recording using a conventional disk on a blue MO system. To increase the areal density, we used mainly three techniques. First, we reduced a disk noise by UV irradiation. Second, we made CNR higher by adjusting the thickness of a metal layer to control the thermal conductivity. Third, we adopted an optical phase shift method for land and groove recording to increase the track density. Using these techniques on an optical pick-up with a 407 nm-Kr laser and a 0.6-NA objective lens, practical system margins were obtained at a 10 Gbit/inch2 areal density.

Paper Details

Date Published: 18 September 2000
PDF: 6 pages
Proc. SPIE 4090, Optical Data Storage 2000, (18 September 2000); doi: 10.1117/12.399359
Show Author Affiliations
K. Kawase, Sony Corp. (Japan)
Yoshihiro Muto, Sony Corp. (Japan)
Kazunori Yamaguchi, Sony Corp. (Japan)
N. Ando, Sony Corp. (Japan)
Yasuaki Maeda, Sony Corp. (Japan)
Masahiro Yamada, Sony Corp. (Japan)
Masayoshi Kanno, Sony Corp. (Japan)


Published in SPIE Proceedings Vol. 4090:
Optical Data Storage 2000
Douglas G. Stinson; Ryuichi Katayama, Editor(s)

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