Accession Number:

AD0441858

Title:

INTERFERENCE LIGHT MODULATION RECORDING TECHNIQUES.

Descriptive Note:

Final rept. 1 Apr 63-1 Apr 64,

Corporate Author:

NORTH AMERICAN AVIATION INC LOS ANGELES CA

Personal Author(s):

• Ayres, R. J.

Report Date:

1964-06-30

Pagination or Media Count:

1.0

Abstract:

This final report covers a 12-month program of theoretical and experimental effort leading to the development of Light Modulation Recording Techniques for Near Real-Time Display. A complete theoretical analysis is presented of the interference-modulation technique, and all performance iquations are derived. Results of the program have shown that the technique is theoretically capable of providing a 20-Mcsec modulation bandwidth with a modulation factor approaching 100 percent. This report describes and analyzes the laboratory breadboard model developed under the program experimental tests performed on the model verified the theory and demonstrated that the techniques developed are feasible. Several experimentally obtained oscillograms and graphs are shown of modulator response, optical-transmission efficiency, modulation factor, and scanner performance. Author

Descriptors:

• (*LASERS
• MODULATION)
• (*RECORDING SYSTEMS
• LIGHT)
• BANDWIDTH
• OPTICAL EQUIPMENT
• TRANSDUCERS
• OPTICAL SCANNING
• MAPPING
• INTERFEROMETERS
• PIEZOELECTRIC TRANSDUCERS
• PHOTOGRAPHIC FILM
• DISPLAY SYSTEMS

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE