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Applied Optics

Applied Optics


  • Vol. 41, Iss. 14 — May. 10, 2002
  • pp: 2679–2685

Nonlinear model for an optical read-only-memory disk readout channel based on an edge-spread function

Seiji Kobayashi  »View Author Affiliations

Applied Optics, Vol. 41, Issue 14, pp. 2679-2685 (2002)

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A point-spread function (PSF) is commonly used as a model of an optical disk readout channel. However, the model given by the PSF does not contain the quadratic distortion generated by the photo-detection process. We introduce a model for calculating an approximation of the quadratic component of a signal. We show that this model can be further simplified when a read-only-memory (ROM) disk is assumed. We introduce an edge-spread function by which a simple nonlinear model of an optical ROM disk readout channel is created.

© 2002 Optical Society of America

OCIS Codes
(210.0210) Optical data storage : Optical data storage
(210.4590) Optical data storage : Optical disks
(230.0040) Optical devices : Detectors
(230.0250) Optical devices : Optoelectronics

Original Manuscript: October 22, 2001
Revised Manuscript: January 22, 2002
Published: May 10, 2002

Seiji Kobayashi, "Nonlinear model for an optical read-only-memory disk readout channel based on an edge-spread function," Appl. Opt. 41, 2679-2685 (2002)

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