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Proceedings Paper

15-Gb/in.2 areal density optical disk using the DWDD medium with blue LD recording
Author(s): Tetsuhiro Sakamoto; Goro Fujita; Yoshihiro Takemoto; Yuuji Akiyama; Shingo Imanishi; Katsuhisa Aratani; Masayoshi Kanno; Ariyoshi Nakaoki
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Paper Abstract

We developed a DWDD (Domain Wall Displacement Detection) medium which was applied for an optical disk system with a blue laser diode ((lambda) equals 406 nm) and an objective lens of NA equals 0.60. the layer structure of the medium was modified by taking into account the thermal characteristics of the medium during readout with blue laser. The result of jitter measurement suggested that areal density of over 15 Gbit/inch2 is feasible for the DWDD media with a blue laser.

Paper Details

Date Published: 18 September 2000
PDF: 7 pages
Proc. SPIE 4090, Optical Data Storage 2000, (18 September 2000); doi: 10.1117/12.399340
Show Author Affiliations
Tetsuhiro Sakamoto, Sony Corp. (Japan)
Goro Fujita, Sony Corp. (Japan)
Yoshihiro Takemoto, Sony Corp. (Japan)
Yuuji Akiyama, Sony Corp. (Japan)
Shingo Imanishi, Sony Corp. (Japan)
Katsuhisa Aratani, Sony Corp. (Japan)
Masayoshi Kanno, Sony Corp. (Japan)
Ariyoshi Nakaoki, Sony Corp. (Japan)

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

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