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Proceedings Paper

Pit Shape At Overwriting Of Thermal Magneto-Optical Recording
Author(s): Kouichi Yamada; Isao Watanabe; Kunimaro Tanaka; Masanori Nakada
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Paper Abstract

The pit shape in magnetic field modulation recording is obtained from temperature profile which is calculated by using three dimensional thermal diffusion equations considering the movement of laser spot. The pit edge shape changes more elliptically with increasing disk velocity. The calculated frequency response does not degrade so much as the pit edge shape changes. The influence of disk velocity to the frequency response is less than that of recorded pit duty. These calculation method is useful for obtaining the recording characteristics of read-write channel, when various parameters are changed, without experiments.

Paper Details

Date Published: 2 June 1988
PDF: 6 pages
Proc. SPIE 0899, Optical Storage Technology and Applications, (2 June 1988); doi: 10.1117/12.944620
Show Author Affiliations
Kouichi Yamada, Mitsubishi Electric Corporation (Japan)
Isao Watanabe, Mitsubishi Electric Corporation (Japan)
Kunimaro Tanaka, Mitsubishi Electric Corporation (Japan)
Masanori Nakada, Mitsubishi Electric Corporation (Japan)

Published in SPIE Proceedings Vol. 0899:
Optical Storage Technology and Applications
Donald B. Carlin; Albert A. Jamberdino; Yoshito Tsunoda, Editor(s)

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