Accession Number : ADD014294

Title :   OPFET (Optical Field-Effect Transistor) Demodulator-Downconverter for Detecting Microwave Modulated Optical Signals.

Descriptive Note : Patent, Filed 28 May 87, patented 8 Aug 89,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Rauscher, Christen

Report Date : 08 Aug 1989

Pagination or Media Count : 8

Abstract : A field-effect transistor performs four functions, namely signal demodulation, generation of a local oscillator signal, generation of harmonics of this local oscillator signal through frequency multiplication, and mixing of the demodulated signal with either the local oscillator signal or one of its harmonics to produce a signal at a lower intermediate frequency; the field-effect transistor being the key element in a demodulator-downconversion circuit. Keywords: Demodulators; Down converters; Optical field effect transistors. Patents. PAT-CL-455-619. (EDC)

Descriptors :   *DEMODULATORS, *DOWN CONVERTERS, *FIELD EFFECT TRANSISTORS, *PATENTS, DEMODULATION, FREQUENCY, FUNCTIONS, HARMONICS, INTERMEDIATE FREQUENCIES, LOCAL OSCILLATORS, MICROWAVES, MODULATION, MULTIPLICATION, OPTICAL PROPERTIES, OPTICS, SIGNALS

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE