Accession Number : AD0283588

Title :   ULTRAVIOLET TRANSMITTER DESIGN AND DEVELOPMENT PROGRAM

Corporate Author : SYLVANIA ELECTRIC PRODUCTS INC BUFFALO N Y

Personal Author(s) : WOLF,E.

Report Date : 01 AUG 1962

Pagination or Media Count : 1

Abstract : Investigations continued toward the design of an experimental ultraviolet transmitter for application to long range space communications. The critical dependence of range on modulation rate is shown for several modulation techniques with ideal and noisy detectors. Also: (1) the limitations imposed on modulation rates by multimodes are discussed; (2) the advantages of polarization modulation are shown; and (3) a comparison is made of superheterodyne receivers and video receivers. Experimental and theoretical work on the LASER source is discussed and the results of investigations on a Cd-Xe system are presented. Additional systems under consideration are also covered. A complete analysis for the polarization modulation system illustrating its operation is presented and a novel lowpower modulator in which the path length in an interference filter is electro-optically varied is discussed. (Author)

Descriptors :   *LASERS, *ULTRAVIOLET COMMUNICATIONS, CADMIUM, CRYSTAL VIDEO RECEIVERS, DESIGN, INFRARED TRANSMITTERS, MODULATION, POLARIZATION, SIGNAL-TO-NOISE RATIC, SOURCES, SPACE COMMUNICATIONS, ULTRAVIOLET FILTERS, ULTRAVIOLET RADIATION, ULTRAVIOLET RECEIVERS, XENON

Distribution Statement : APPROVED FOR PUBLIC RELEASE