Super high density optical disc by using multi-layer structure

Author

Shida, N. ; Suga, K. ; Higuchi, T. ; Iida, T.

Author_Institution

Corp. R&D Lab., Pioneer Corp., Saitama, Japan

fYear

2000

fDate

14-17 May 2000

Firstpage

27

Lastpage

29

Abstract

To realize a super high density optical disc, the authors made basic researches into a space layer by using a photopolymer sheet owing to the uniformity of each space layer thickness. Then a prototype disc was manufactured. Thickness variation on each sheet was within 1.3 /spl mu/m. The transcription characteristic was verified. The data-to-clock jitter of the disc was measured. The recording capacity was 27.4 GB on a 12 cm disc. The capacity of each layer was 13.7 GB. As a result of these basic researches, we realized a super high density optical disc by using multi-layer structure, it is very important to utilize a photopolymer sheet for the space layer. It then will be possible to realize the recording capacity of 50 GB or over on a 12 cm disc having a four layered structure.

Keywords

jitter; optical disc storage; optical fabrication; optical multilayers; optical polymers; 12 cm; 27.4 GB; 50 GB; data-to-clock jitter; four layered structure; multi-layer structure; photopolymer sheet; prototype dis; recording capacity; space layer; space layer thickness; super high density optical disc; transcription characteristic; Aluminum alloys; DVD; Disk recording; Laboratories; Optical recording; Prototypes; Research and development; Shape measurement; Sputtering; Structural discs;

fLanguage

English

Publisher

ieee

Conference_Titel

Optical Data Storage, 2000. Conference Digest

Conference_Location

Whisler, BC, Canada

Print_ISBN

0-7803-5950-X

Type

conf

DOI

10.1109/ODS.2000.847970

Filename

847970