Dynamic Testing of Optical Disk Flatness

Julian Lewkowicz; D. K. Cohen

doi:10.1364/ODS.1983.WB7

Topical Meeting on Optical Data Storage
Technical Digest Series (Optica Publishing Group, 1983),
paper WB7
•https://doi.org/10.1364/ODS.1983.WB7

Dynamic Testing of Optical Disk Flatness

Julian Lewkowicz and D. K. Cohen

Optical Data Storage 1983

Incline Village, Nevada United States
17–20 January 1983
ISBN:

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Components and Techniques (WB)

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J. Lewkowicz and D. K. Cohen, "Dynamic Testing of Optical Disk Flatness," in Topical Meeting on Optical Data Storage, Technical Digest Series (Optica Publishing Group, 1983), paper WB7.

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Abstract

It is shown that focus error signal spectrum, measured while disk is spinning, represents Fourier transform of the disk profile modified by the loop gain.

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