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Proceedings Paper

Near-field readout system for a high-density optical ROM disc
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Paper Abstract

We developed a near field readout system for an optical ROM disc with a GaN laser diode and a 1.4-effective-NA objective lens. We read out a 25 Gbyte optical ROM disc using a gap servo and a tracking servo in the near field read system, and experimentally confirmed an effective NA of 1.4.

Paper Details

Date Published: 10 January 2002
PDF: 10 pages
Proc. SPIE 4342, Optical Data Storage 2001, (10 January 2002); doi: 10.1117/12.453438
Show Author Affiliations
Tsutomu Ishimoto, Sony Corp. (Japan)
Kimihiro Saito, Sony Corp. (Japan)
Takao Kondo, Sony Corp. (Japan)
Ariyoshi Nakaoki, Sony Corp. (Japan)
Masanobu Yamamoto, Sony Corp. (Japan)

Published in SPIE Proceedings Vol. 4342:
Optical Data Storage 2001

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