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Proceedings Paper

Laser Beam Recording Techniques
Author(s): Carmine Masucci
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Paper Abstract

A considerable effort has been expended over the past ten years to develop high resolution, wide bandwidth, and wide dynamic range recorders. In the earlier years, the effort was concentrated on flying spot CRT recorders. These devices have good performance at low bandwidth, limited dynamic range, and medium to low resolution. The advent of the laser opened new dimensions in the recording and readout fields. The properties which make the laser a unique light source are its high collimation, monochromaticity, and power density. It can be used to form near diffraction-limited spots with very high power densities. The availability of laser light sources has been matched by the development and availability of high perform-ance (diffraction-limited) optical components tailored to the available lasers, modulation schemes operating from a video bandwidth of a few hundred kilohertz to tens of megahertz, spinner/moving mirror schemes operating from a speed of a few hundred rpm to tens of thousand rpm, variable speed film transport system(s) compatible to the spinner speed, and necessary ancillary circuit designs/ components to permit the required control and synchronization of the recorder. The available operational recorders, of the continuous strip and frame form(s), can be improved in future developments by the incorporation of the HoloFacetTM type spinner. This device will minimize the line start (jitter) and line-to-line disturbance (banding) in the recording due to geometrical errors in the fabrication of the spinner/moving mirror unit, including the bearing assembly.

Paper Details

Date Published: 1 March 1974
PDF: 7 pages
Proc. SPIE 0053, Laser Recording and Information Handling Technology I, (1 March 1974); doi: 10.1117/12.954204
Show Author Affiliations
Carmine Masucci, CBS Laboratories (United States)

Published in SPIE Proceedings Vol. 0053:
Laser Recording and Information Handling Technology I
Leo Beiser, Editor(s)

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