Accession Number : AD0428980

Title :   RESEARCH ON TECHNIQUES FOR LIGHT MODULATION DETECTION.

Descriptive Note : Interim engineering rept. no. 6, 1 Sep-1 Dec 63,

Corporate Author : SYLVANIA ELECTRIC PRODUCTS INC MOUNTAIN VIEW CALIF

Personal Author(s) : Ammann,E. O. ; Targ,R. ; Harris,S. E. ; Gaenzle,J.

Report Date : 01 DEC 1963

Pagination or Media Count : 128

Abstract : Ths report describes work on heterodyne demodulation and direct demodulation of FM light. Results are given in the following areas: (1) experimental measurements on the optical ratio detector are described; (2) theoretical work resulting in two techniques for realizing any desired optical frequency characteristic is described. This work paves the way for a second generation of birefringent devices designed specifically to meet some system specification; (3) heterodyne and homodyne techniques for the demodulation of AM and FM microwave-modulation light are demonstrated; and (4) an AFC local oscillator using single-sideband suppressedcarrier modulation to control its frequency is investigated for use in an optical heterodyne receiver. (Author)

Descriptors :   (*LIGHT, MODULATION), (*DETECTION, MODULATION), (*MODULATION, LIGHT), FREQUENCY MODULATION, DEMODULATION, DEMODULATORS, MEASUREMENT, THEORY, OPTICAL EQUIPMENT, AMPLITUDE MODULATION, OSCILLATORS, SINGLE SIDEBAND COMMUNICATIONS, DISCRIMINATORS

Distribution Statement : APPROVED FOR PUBLIC RELEASE