Signal-to-noise ratio performance of magneto-optic read channels in the presence of bloom

Inci Ozgunes; Bhagavatula Vijaya Kumar

doi:10.1117/12.190201

12 October 1994 Signal-to-noise ratio performance of magneto-optic read channels in the presence of bloom

Inci Ozgunes, Bhagavatula Vijaya Kumar

Proceedings Volume 2338, 1994 Topical Meeting on Optical Data Storage; (1994) https://doi.org/10.1117/12.190201
Event: Optical Data Storage '94, 1994, Dana Point, CA, United States

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.

Citation Download Citation

Inci Ozgunes and Bhagavatula Vijaya Kumar "Signal-to-noise ratio performance of magneto-optic read channels in the presence of bloom", Proc. SPIE 2338, 1994 Topical Meeting on Optical Data Storage, (12 October 1994); https://doi.org/10.1117/12.190201

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