Deep-groove method on high-density optical disk memory

Seiji Morita; Madoka Nishiyama; Masahiro Furuta

doi:10.1117/12.280689

30 July 1997 Deep-groove method on high-density optical disk memory

Seiji Morita, Madoka Nishiyama, Masahiro Furuta

Proceedings Volume 3109, Optical Data Storage 1997 Topical Meeting; (1997) https://doi.org/10.1117/12.280689
Event: Optical Data Storage Topical Meeting '97, 1997, Tucson, AZ, United States

Abstract

For multi-media applications, a higher density rewritable optical disk with a reduced track pitch becomes extremely important. To narrow the track pitch, increasing the groove depth of the land/groove recording type optical disk has been proposed. Not only magnetooptical recording systems but also phase-change recording systems can be applied to the deeper groove technique which gives wider recording power margin in addition to the cross-erase suppression, so that the high density rewritable optical recording systems will be steadily realized without shorter wavelength laser diodes.

Citation Download Citation

Seiji Morita, Madoka Nishiyama, and Masahiro Furuta "Deep-groove method on high-density optical disk memory", Proc. SPIE 3109, Optical Data Storage 1997 Topical Meeting, (30 July 1997); https://doi.org/10.1117/12.280689

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