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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 45, Iss. 27 — Sep. 20, 2006
  • pp: 7065–7072

Acousto-optic parallel read∕write head for optical disk data storage

Robert R. McLeod and Sarah K. Walter  »View Author Affiliations


Applied Optics, Vol. 45, Issue 27, pp. 7065-7072 (2006)
http://dx.doi.org/10.1364/AO.45.007065


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Abstract

Parallel read and write of optical disks has traditionally used a static grating for read or a linear array of independent lasers for read and write. Depending on the implementation, these systems suffer from coherent cross talk, excessive space between spots, and an inability to independently track. We show that a dynamic acousto-optic grating can generate multiple parallel read∕write spots on the disk, each of which can be independently modulated and tracked and all of which are incoherent in less that a bit period. The resulting disk pickup can potentially reach gigabit per second transfer rates with only a modest increase in the drive complexity.

© 2006 Optical Society of America

OCIS Codes
(210.4590) Optical data storage : Optical disks
(230.1040) Optical devices : Acousto-optical devices

History
Original Manuscript: March 24, 2006
Manuscript Accepted: May 5, 2006

Citation
Robert R. McLeod and Sarah K. Walter, "Acousto-optic parallel read/write head for optical disk data storage," Appl. Opt. 45, 7065-7072 (2006)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-45-27-7065

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