Compact polarization ultrafast response low-light image intensifier

The invention discloses a compact polarization ultrafast response low-light-level image intensifier, and relates to the technical field of photoelectric detection, the compact polarization ultrafast response low-light-level image intensifier comprises an input window and an imaging system, the top end of the input window is fixedly provided with a ceramic member, and the top end of the ceramic member is fixedly provided with an output window and an integrated polarization and electron supplement. The integrated polarization and electron replenisher is arranged at the top end of the input window 1 and comprises a 45-degree polarization grating, and the 45-degree polarization grating is arranged on the upper left portion of the top end of the input window. An integrated polarization and electron replenisher 2 is arranged on an input window 1 of the image intensifier and is composed of a 45-degree polarization grating, a 0-degree polarization grating, a 135-degree polarization grating and a 90-degree polarizatio