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Proceedings Paper

Signal-to-noise ratio performance of magneto-optic read channels in the presence of bloom
Author(s): Inci Ozgunes; Bhagavatula Vijaya Kumar
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Paper Abstract

Bloom, the thermal expansion or contraction of the written domains in magneto-optic (MO) recording can cause degraded detection performance at high densities. To study the effect of bloom on the soft bit error rate (BER), we modeled the MO channel in the presence of bloom. Our study indicates that 4 ns of bloom causes two orders of magnitude increase in the BER when Decision Feedback Equalizer (DFE) is used with Run Length Limited (RLL) (1,7) coded Pulsed Width Modulated (PWM) signal.

Paper Details

Date Published: 12 October 1994
PDF: 9 pages
Proc. SPIE 2338, 1994 Topical Meeting on Optical Data Storage, (12 October 1994); doi: 10.1117/12.190201
Show Author Affiliations
Inci Ozgunes, Carnegie Mellon Univ. (United States)
Bhagavatula Vijaya Kumar, Carnegie Mellon Univ. (United States)


Published in SPIE Proceedings Vol. 2338:
1994 Topical Meeting on Optical Data Storage
David K. Campbell; Martin Chen; Koichi Ogawa, Editor(s)

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