Abstract

A compact magnetooptical disk having 500 times the capacity of a 13.34-cm (5.25-in.) floppy disk has been developed for use in coded data storage applications. Low error rates are attained by the use of advanced highly sensitive polarization detection optics and high-quality recording media. Progress in these fields has been based on noise analysis of readout signals. The disk drive can write and erase data by sectors and can also play current write-once-type optical disks. This disk/disk drive unit promises to lead to enhanced storage capacity and to support the current drive to enhance office automation and other information systems.

© 1986 Optical Society of America

Magnetooptic erasable disk memory with two optical heads

Teruo Murakami, Kozo Taira, and Masafumi Mori
Appl. Opt. 25(22) 3986-3989 (1986)

Digital magnetooptic disk drive

T. Deguchi, H. Katayama, A. Takahashi, K. Ohta, S. Kobayashi, and T. Okamoto
Appl. Opt. 23(22) 3972-3978 (1984)

Edge detection for magnetooptical data storage

Marc D. Levenson, Robert T. Lynch, and S. M. Tan
Appl. Opt. 30(2) 232-252 (1991)

Erasable digital audio disk system

Kenji Torazawa, Satoshi Sumi, Seiji Murata, Shigekazu Minechika, and Yasuhiro Ishii
Appl. Opt. 25(22) 3990-3995 (1986)

Microholographic multilayer optical disk data storage

Robert R. McLeod, Andrew J. Daiber, Mark E. McDonald, Timothy L. Robertson, Timothy Slagle, Sergei L. Sochava, and Lambertus Hesselink
Appl. Opt. 44(16) 3197-3207 (2005)