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Proceedings Paper

Laser Specification For Image And Optical Disk Recording
Author(s): L. W. Dobbins; Ross Johnston
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Paper Abstract

Laser specification criteria for both image and optical disk recording/playback are discussed. In laser image recording, the choice of laser wavelength is dictated by the spectral sensitivity of the recording film. Laser power required is determined by the film sensitivity, maximum density, and maximum film area exposed per second. Argon and helium neon lasers have been employed in image recording. High power argon ion lasers have been employed for extremely high data rate and packing density optical disk recorders. These recorders have employed multiple beam techniques and "jukebox" configurations to provide data rates greater than 500 Mbps, and data storage of 1 X 101 bits per side of a 14-inch disk. Laser diodes have been employed in rugged and/or compact data storage devices to provide data rates up to 25 Mbps per track, with multiple diodes for multiple tracks, and data storage up to 5 x 16° bits per side. Laser specifications such as beam power, noise mode and angular sta-bility, physical size, and cooling requirements are discussed.

Paper Details

Date Published: 14 July 1986
PDF: 9 pages
Proc. SPIE 0607, Optical Component Specifications for Laser-based Systems and Other Modern Optical Systems, (14 July 1986); doi: 10.1117/12.956368
Show Author Affiliations
L. W. Dobbins, RCA Communication and Information Systems Division (United States)
Ross Johnston, RCA Communication and Information Systems Division (United States)


Published in SPIE Proceedings Vol. 0607:
Optical Component Specifications for Laser-based Systems and Other Modern Optical Systems
Robert E. Fischer; Warren J. Smith, Editor(s)

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