Laser Beam Recording Techniques

Carmine Masucci

doi:10.1117/12.954204

1 March 1974 Laser Beam Recording Techniques

Carmine Masucci

Proceedings Volume 0053, Laser Recording and Information Handling Technology I; (1974) https://doi.org/10.1117/12.954204
Event: Acquisition and Analysis of Pictorial Data, 1974, San Diego, United States

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.

Citation Download Citation

Carmine Masucci "Laser Beam Recording Techniques", Proc. SPIE 0053, Laser Recording and Information Handling Technology I, (1 March 1974); https://doi.org/10.1117/12.954204

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KEYWORDS

Mirrors

Video

Collimation

Modulation

Objectives

Optical resolution

Light sources

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