Optical Waveguide Electro-Optic Probe for Field-Calibrated Antenna Measurement

A photonic-based electric field sensing system for mobile communication antenna is presented. An integrated optical waveguide with an electro-optic wafer serves as an efficient electric field probe, with an electrode mounted over the waveguide to enhance its performance. The proposed sensing system is capable of measuring electric fields up to 6 GHz, with a minimum detectable field level of 1 mV/m.