Multifrequency E-Field Measurement by Optical Under-Sampling System

Aiming at the fast measurement of multifrequency E-field distributed in a wide bandwidth range, this paper introduces an optical undersampling measurement method using Remainder Matching(RM) algorithm. The multifrequency e-field signal distributed in the range of 10 GHz is compressed to 110MHz for receiving and measurement, and the measurement speed is greatly improved. The reliability of this method is proved by theoretical analysis and simulation test.