Accession Number : AD0901631

Title :   Optical Receiver.

Descriptive Note : Final rept. 15 Mar 71-15 Feb 72,

Corporate Author : MCDONNELL DOUGLAS ASTRONAUTICS CO ST LOUIS MO

Personal Author(s) : Green, Samuel I.

Report Date : 15 MAY 1972

Pagination or Media Count : 50

Abstract : The objective of this program was to design, fabricate, test, and deliver an optical receiver for use in a high-speed, digital laser communication link. It will be used in experiments in the laboratory, as well as in field facilities, to detect the modulated 300 Mpps fundamental 1.06 micrometer wavelength, or the doubled 0.53 micrometer wavelength, output of a mode-locked Nd:YAG laser communication transmitter. This program included a detector-receiver and electronic design phase, a fabrication phase, an evaluation phase, and a study which included reliability and maintainability considerations for the optical receiver. The approach taken exploited the properties of a 1200 MHz dynamic crossed field photomultiplier (DCFP) to detect the 300 Mbps data from a digitally modulated mode-locked Nd:YAG laser. At the conclusion of the development program, an optical receiver, with two interchangeable 1200 MHz DCFP detector heads, and an electronic control unit were delivered. The unit is only operable at 300 Mbps. (Author)

Descriptors :   *SPACE COMMUNICATIONS), (*OPTICAL COMMUNICATIONS, (*INFRARED RECEIVERS, SPACE COMMUNICATIONS), NEODYMIUM, MODULATORS, PHOTOMULTIPLIER TUBES, DIGITAL SYSTEMS, DATA TRANSMISSION SYSTEMS, PHOTOELECTRONS, RADIOFREQUENCY POWER, CROSSED FIELD DEVICES, TEST EQUIPMENT, PHOTOCATHODES, INFRARED DETECTORS, GAIN, AUTOMATIC GAIN CONTROL, LASERS.

Subject Categories : Lasers and Masers
      Non-radio Communications

Distribution Statement : APPROVED FOR PUBLIC RELEASE