Accession Number : AD0742728

Title :   10.6 UM Laser Communication System.

Descriptive Note : Semiannual technical rept. 1 Sep 71-31 Mar 72,

Corporate Author : HUGHES RESEARCH LABS MALIBU CALIF

Personal Author(s) : Goodwin,F. E. ; Nussmeier,T. A. ; Morse,J. H.

Report Date : APR 1972

Pagination or Media Count : 90

Abstract : This report summarizes work performed under the contract from September 1971 through March 1972, the first half of a one-year effort to design, fabricate, and test an experimental 10.6 micrometer laser communication system. The system consists of a transmitting terminal and a receiving terminal which provides a simplex 5 Mbit/sec data channel over a five-mile terrestrial path with an error rate of 0.000.01 in all but the most severe weather conditions. The system uses intracavity electro-optic modulation with a frequency shift keying format and optical FM heterodyne detection using a mercury-cadmiu,-telluride (HgCdTe) detector operating at 77K. The details of the system design and predicted performance in rain and fog are given. (Author)

Descriptors :   (*OPTICAL COMMUNICATIONS, SYSTEMS ENGINEERING), GAS LASERS, INFRARED LASERS, TRANSMITTER RECEIVERS, INFRARED DETECTORS, OPTICAL EQUIPMENT, PERFORMANCE(ENGINEERING)

Subject Categories : Non-radio Communications

Distribution Statement : APPROVED FOR PUBLIC RELEASE