The future of magneto-optical recording

Seiya Ogawa; Keiji Shono; Fumio Tabata; Koichi Ogawa

doi:10.1117/12.510137

9 April 2003 The future of magneto-optical recording &2264;

Seiya Ogawa, Keiji Shono, Fumio Tabata, Koichi Ogawa

Proceedings Volume 5060, Sixth International Symposium on Optical Storage (ISOS 2002); (2003) https://doi.org/10.1117/12.510137
Event: Sixth International Symposium on Optical Storage (ISOS 2002), 2002, Wuhan, China

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;

Citation Download Citation

Seiya Ogawa, Keiji Shono, Fumio Tabata, and Koichi Ogawa "The future of magneto-optical recording &2264;", Proc. SPIE 5060, Sixth International Symposium on Optical Storage (ISOS 2002), (9 April 2003); https://doi.org/10.1117/12.510137

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