New approach to high-density recording on a magneto-optical disk

Goro Fujita; Yoshinori Urakawa; Tamotsu Yamagami; Tetsu Watanabe

doi:10.1117/12.45914

1 July 1991 New approach to high-density recording on a magneto-optical disk

Goro Fujita, Yoshinori Urakawa, Tamotsu Yamagami, Tetsu Watanabe

Proceedings Volume 1499, Optical Data Storage '91; (1991) https://doi.org/10.1117/12.45914
Event: Optical Data Storage, 1991, Colorado Springs, CO, United States

Abstract

We have studied the influence of the pit shape upon the amplitude characteristics of the optical channel in an MO disk system, and studied three channel codings to determine their suitability for high-density recording. It is confirmed that magnetic field modulation with pulsed laser irradiation has the highest amplitude characteristics and NRZI format is most adequate for the method at the density of 0.6 micrometers /bit to 1.0 micrometers /bit.

Citation Download Citation

Goro Fujita, Yoshinori Urakawa, Tamotsu Yamagami, and Tetsu Watanabe "New approach to high-density recording on a magneto-optical disk", Proc. SPIE 1499, Optical Data Storage '91, (1 July 1991); https://doi.org/10.1117/12.45914

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