Beam shaping for optical data storage

Edwin P. Walker, Thomas D Milster

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

One application of beam shaping is to improve signal quality in optical data storage systems. 1 Since the light source in an optical data storage device is a coherent laser beam, simple beam-shaping techniques can greatly influence the performance of the system. Beam-shaping elements take the form of spatially dependent optical filters that are strategically placed in the light path. This chapter discusses theory, simulations, and practical implementation for beam-shaping techniques used in optical data storage. The storage and retrieval of data on optical disks are described in two simple steps. First, data marks are recorded on a surface. The second step is retrieval of the information from the disk, where a focused light beam scans the surface. Modulation in the reflected light is used to detect the data-mark pattern under the scanning spot.

Original languageEnglish (US)
Title of host publicationLaser Beam Shaping Applications, Second Edition
PublisherCRC Press
Pages211-234
Number of pages24
ISBN (Electronic)9781498714426
ISBN (Print)9781498714419
DOIs
StatePublished - Jan 1 2017

Fingerprint

Optical data storage
data storage
retrieval
optical disks
optical filters
light beams
Optical filters
light sources
Laser beams
laser beams
Light sources
modulation
scanning
Modulation
Scanning
Data storage equipment
simulation

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)
  • Materials Science(all)

Cite this

Walker, E. P., & Milster, T. D. (2017). Beam shaping for optical data storage. In Laser Beam Shaping Applications, Second Edition (pp. 211-234). CRC Press. https://doi.org/10.1201/9781315371306

Beam shaping for optical data storage. / Walker, Edwin P.; Milster, Thomas D.

Laser Beam Shaping Applications, Second Edition. CRC Press, 2017. p. 211-234.

Research output: Chapter in Book/Report/Conference proceedingChapter

Walker, EP & Milster, TD 2017, Beam shaping for optical data storage. in Laser Beam Shaping Applications, Second Edition. CRC Press, pp. 211-234. https://doi.org/10.1201/9781315371306
Walker EP, Milster TD. Beam shaping for optical data storage. In Laser Beam Shaping Applications, Second Edition. CRC Press. 2017. p. 211-234 https://doi.org/10.1201/9781315371306
Walker, Edwin P. ; Milster, Thomas D. / Beam shaping for optical data storage. Laser Beam Shaping Applications, Second Edition. CRC Press, 2017. pp. 211-234
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