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Proceedings Paper

Optical pickup using a blue-green laser diode to read a high-density disk
Author(s): Naoya Eguchi; Akira Ishibashi
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Paper Abstract

We have realized the readout of optical disks with a 7.7 GB capacity (a track pitch of 0.58 micrometers and a minimum mark length of 0.31 micrometers ) using a ZnMgSSe laser diode and an objective lens with a numerical aperture of 0.6. We employed high-frequency modulation of 300 MHz for the ZnMgSSe laser diode drive circuit to minimize feedback noise. Measured jitter was 9.2% of a channel bit.

Paper Details

Date Published: 30 July 1997
PDF: 5 pages
Proc. SPIE 3109, Optical Data Storage 1997 Topical Meeting, (30 July 1997); doi: 10.1117/12.280683
Show Author Affiliations
Naoya Eguchi, Sony Corp. (Japan)
Akira Ishibashi, Sony Corp. (Japan)

Published in SPIE Proceedings Vol. 3109:
Optical Data Storage 1997 Topical Meeting
Henryk Birecki; James Z. Kwiecien, Editor(s)

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