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Optical Engineering

Acousto-Optic Laser Recording
Author(s): Leo Bademian
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Paper Abstract

This paper describes techniques for the implementation of high speed, high resolution laser line and/or raster scanned recorders through use of acousto-optic deflection and modulation. A rationale for the design of scanned imaging is presented, discussing such topics as horizontal and vertical, modulation transfer function (MTF), exposure requirements when scanning with a Gaussian spot, and the effect of film characteristics (gamma). A descrip-tion of several working systems is presented. These include the LR-100/200 Laser Recorder which involves the recording of 875 line television imagery on 8 and 16 mm dry processed film, and a high resolution line scanner (4000-6000 spots) that was brassboarded solely with the use of acousto-optic components. The heart of each of these systems is a patented acousto-optic device called the chirp scanner which permits high resolution, high speed scans with literally zero flyback time. This device also forms the basis of a future system capable of direct digital recording at a 150 to 200 Mbit rate.

Paper Details

Date Published: 1 February 1981
PDF: 7 pages
Opt. Eng. 20(1) 201143 doi: 10.1117/12.7972678
Published in: Optical Engineering Volume 20, Issue 1
Show Author Affiliations
Leo Bademian, Isomet Corporation (United States)


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