Abstract:To address the power supply issues of pulse electric field sensors in complex electromagnetic environments, a pulse electric field sensor powered by laser photovoltaic cells was designed and fabricated. This sensor consists of a laser photovoltaic cell power supply circuit, an electro-optical conversion circuit, and a monopole antenna. A laser photovoltaic cell power supply circuit was designed and fabricated using a constant current source circuit to drive a semiconductor laser, photovoltaic cells, and other components. Laser-powered batteries can convert the input laser energy of specific wavelengths into electrical energy to provide power to loads or sensors at the receiver end, thereby achieving long-distance contactless power supply. Test results show that the developed pulse electric field sensor has a measurement ±3dB bandwidth of 20kHz to 500MHz, a dynamic range of 100V/m to 60kV/mm, a load impedance of 125Ω, linearity better than 10%, and transient calibration meeting rise time less than 3.5 ns.