Accession Number : AD0808864

Title :   OPTIMUM COHERENT OPTICAL RECEIVER TECHNIQUES.

Descriptive Note : Interim rept. no. 3, 30 Sep-30 Dec 66,

Corporate Author : SYLVANIA ELECTRONIC SYSTEMS-WEST MOUNTAIN VIEW CA

Personal Author(s) : Fisher, Mahlon B.

Report Date : FEB 1967

Pagination or Media Count : 20

Abstract : The evaluation of the high-frequency image dissector has been continued during this period. The heterodyne experiment conducted during this period on the optical test range successfully demonstrated coherent detection with the breadboard optical receiver operating in the tracking mode. The tracking system pointing accuracy was demonstrated to be approximately 20 arc seconds. The characteristics of the crossed-field electron multiplier as a detector of extremely short optical pulses were investigated in a parallel effort in the laboratory. The time-resolved output of a phase-locked helium-neon gas laser and a phase-locked Nd:YAG solid-state laser were observed. The estimated rise time of the crossed-field electron multiplier is approximately 0.5 nanoseconds. (Author)

Descriptors :   *ELECTRON MULTIPLIERS), (*OPTICAL TRACKING, LASERS), (*CROSSED FIELD DEVICES, DETECTORS, PHASE LOCKED SYSTEMS, TRANSMITTER RECEIVERS, COHERENT RADIATION.

Subject Categories : Electrical and Electronic Equipment
      Optical Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE