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Proceedings Paper

Analysis Of Magneto-Optic Media For Optical Disk Drives
Author(s): M. Keppler; G. Goldmann
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Paper Abstract

In the shot noise limited case C/N-ratios of more than 60 dB should be achievable with MO-layers available today. Light ellipticity due to substrate birefringence and phase retardation in the optics reduces the C/N-ratio in practice drastically. With optimized optical set-ups C/N-ratios of 50-54 dB were realized with PC-disks. Local variations of substrate birefringence causes also specific hard errors characterized by peak error amplitudes much higher than the MO-signal. Such errors affect the design of the electronics of the read channel which is demonstrated by a Byte error analysis.

Paper Details

Date Published: 2 June 1988
PDF: 6 pages
Proc. SPIE 0899, Optical Storage Technology and Applications, (2 June 1988); doi: 10.1117/12.944607
Show Author Affiliations
M. Keppler, Siemens AG (Germany)
G. Goldmann, Siemens AG (Germany)


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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