Signal-To-Noise In Magneto-Optic Storage

Masud Mansuripur; G. A. Neville Connell; Joseph W. Goodman

doi:10.1117/12.933397

27 May 1982 Signal-To-Noise In Magneto-Optic Storage

Masud Mansuripur, G. A. Neville Connell, Joseph W. Goodman

Proceedings Volume 0329, Optical Disk Technology; (1982) https://doi.org/10.1117/12.933397
Event: 1982 Los Angeles Technical Symposium, 1982, Los Angeles, United States

Abstract

The power spectral density of the read signal for a magneto-optical readout system based on the polar Kerr effect has been analyzed. A criterion for optimum performance deriving from the signal to noise ratio is then defined and it is shown that a quadrilayer disk structure which acts as an interference device for the enhancement of the Kerr effect is superior to other structures. Results of a thermal calculation for the quadrilayer are then reported. These results clearly indicate that the quadrilayer can be designed to match different levels of laser power available for writing.

Citation Download Citation

Masud Mansuripur, G. A. Neville Connell, and Joseph W. Goodman "Signal-To-Noise In Magneto-Optic Storage", Proc. SPIE 0329, Optical Disk Technology, (27 May 1982); https://doi.org/10.1117/12.933397

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