1 July 1991 New approach to high-density recording on a magneto-optical disk
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Proceedings Volume 1499, Optical Data Storage '91; (1991); doi: 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.
© (1991) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Goro Fujita, Yoshinori Urakawa, Tamotsu Yamagami, Tetsu Watanabe, "New approach to high-density recording on a magneto-optical disk", Proc. SPIE 1499, Optical Data Storage '91, (1 July 1991); doi: 10.1117/12.45914; https://doi.org/10.1117/12.45914
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KEYWORDS
Modulation

Magnetism

Laser irradiation

Channel projecting optics

Forward error correction

Signal to noise ratio

Optical simulations

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