Accession Number : ADD002412
Title : Electro-Optic Modulator.
Descriptive Note : Patent,
Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC
Personal Author(s) : Jensen, Richard E
Report Date : 06 Jan 1976
Pagination or Media Count : 5
Abstract : An electro-optic modulator is used to modulate coherent light beams by the application of an electric potential. It combines a Fabry-Perot etalon and a diffraction grating in a single unit. An etalon is constructed with an electro-optic material between reflecting surfaces. A voltage applied between alternate, spaced-apart electrodes of a metal grid attached to one reflecting surface induces a diffraction grating in the electro optic material. Light entering the etalon is diffracted, reflected and efficiently coupled out.
Descriptors : *ELECTROOPTICS, *LASER MODULATORS, *PATENTS, OPTICAL COATINGS, INTERFEROMETERS, MIRRORS, DIFFRACTION GRATINGS, DIELECTRIC FILMS, COHERENT RADIATION, ELECTRODES
Subject Categories : Lasers and Masers
Distribution Statement : APPROVED FOR PUBLIC RELEASE