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Proceedings Paper

The future of magneto-optical recording &2264;
Author(s): Seiya Ogawa; Keiji Shono; Fumio Tabata; Koichi Ogawa
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Paper Abstract

This paper describes next generation technologies and future technologies of MO (Magneto-Optical) recording. A proximity optical head with blue laser, high NA lens and magnetic coil was developed. The head is kept at 30 μm height over media, using new optical feedback system. Front surface recording using the head and media well designed for blue laser achieved recording density of 17 Gb/in2, giving 23 GB/120 mm media. As future technologies, an optical flying head was developed with 3 μm flying height. Combining the head and DWDD media, a density of 40 Gb/in2 or 50 GB/120 mm media will be possible. &#les;

Paper Details

Date Published: 9 April 2003
PDF: 6 pages
Proc. SPIE 5060, Sixth International Symposium on Optical Storage (ISOS 2002), (9 April 2003); doi: 10.1117/12.510137
Show Author Affiliations
Seiya Ogawa, Fujitsu Labs. Ltd. and Fujitsu Ltd. (Japan)
Keiji Shono, Fujitsu Labs. Ltd. and Fujitsu Ltd. (Japan)
Fumio Tabata, Fujitsu Labs. Ltd. and Fujitsu Ltd. (Japan)
Koichi Ogawa, Fujitsu Labs. Ltd. and Fujitsu Ltd. (Japan)


Published in SPIE Proceedings Vol. 5060:
Sixth International Symposium on Optical Storage (ISOS 2002)

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