Signal and noise with a magnetic circular dichroism detection system in optical data storage

W. Schlichting; T. D. Milster; M. S. Wang; C. Brucker

doi:10.1063/1.356249

Signal and noise with a magnetic circular dichroism detection system in optical data storage

W. Schlichting, T. D. Milster, M. S. Wang, C. Brucker

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2 Scopus citations

Abstract

A magneto-optical head with circular polarized light incident on a Co/Pt superlattice medium is studied. Differential absorption due to magnetic-circular-dichroism (MCD) is used for erasable data detection. This MCD detection system utilizes an optical isolator to minimize the feedback to the laser. The tradeoff for its reduced complexity is the loss of the common mode noise reduction capability. A disk is tested dynamically with the MCD detection system. With a linear medium velocity of 7.56 m/s and a frequency of 5 MHz a carrier-to-noise ratio of 40 dB is demonstrated.

Original language	English (US)
Pages (from-to)	2322-2324
Number of pages	3
Journal	Journal of Applied Physics
Volume	75
Issue number	5
DOIs	https://doi.org/10.1063/1.356249
State	Published - 1994

ASJC Scopus subject areas

General Physics and Astronomy

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10.1063/1.356249

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title = "Signal and noise with a magnetic circular dichroism detection system in optical data storage",

abstract = "A magneto-optical head with circular polarized light incident on a Co/Pt superlattice medium is studied. Differential absorption due to magnetic-circular-dichroism (MCD) is used for erasable data detection. This MCD detection system utilizes an optical isolator to minimize the feedback to the laser. The tradeoff for its reduced complexity is the loss of the common mode noise reduction capability. A disk is tested dynamically with the MCD detection system. With a linear medium velocity of 7.56 m/s and a frequency of 5 MHz a carrier-to-noise ratio of 40 dB is demonstrated.",

author = "W. Schlichting and Milster, {T. D.} and Wang, {M. S.} and C. Brucker",

year = "1994",

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journal = "Journal of Applied Physics",

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AU - Schlichting, W.

AU - Milster, T. D.

AU - Wang, M. S.

AU - Brucker, C.

PY - 1994

Y1 - 1994

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AB - A magneto-optical head with circular polarized light incident on a Co/Pt superlattice medium is studied. Differential absorption due to magnetic-circular-dichroism (MCD) is used for erasable data detection. This MCD detection system utilizes an optical isolator to minimize the feedback to the laser. The tradeoff for its reduced complexity is the loss of the common mode noise reduction capability. A disk is tested dynamically with the MCD detection system. With a linear medium velocity of 7.56 m/s and a frequency of 5 MHz a carrier-to-noise ratio of 40 dB is demonstrated.

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JO - Journal of Applied Physics

JF - Journal of Applied Physics

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Signal and noise with a magnetic circular dichroism detection system in optical data storage

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