Patent ID: 6369897
Filing Date: 2002-04-09
Classification: G01R

Abstract:
A fiber optic receiving antenna comprising:a master oscillator for generating a reference signal having a predetermined amplitude and frequency; a fiber optic interferometer comprising: first and second arms comprised of respective optical fibers, each arm receiving at least a portion of the reference signal generated by said master oscillator at least one of said optical fibers being electrooptically active, and the respective electrooptic activity of said optical fibers that comprise said first and second arms being different; and a coupler for combining signals that have propagated along said first and second arms wherein said fiber optic interferometer is responsive to an incident electric field such that the signals propagating along said first and second optical fibers are modulated differently by the incident electric field; and a detector for receiving the combined signals from said coupler and for generating a signal that is at least partially dependent upon the incident electric field.