Microwave quantum correlation detecting device and method

The invention relates to a microwave quantum correlation detecting device and method. The device comprises a single-frequency continuous fiber laser, wherein an electro-optic modulator is disposed onthe outgoing light path of the single-frequency continuous fiber laser; the outgoing optical path of the electro-optic modulator is sequentially provided with a narrow-band filter, an optical attenuator and an optical beam splitter, single photon detectors are respectively disposed on the reflected light path and the transmitted light path of the optical beam splitter, and the two single photon detectors are both connected to a quantum correlation processor. The microwave quantum correlation detecting device and method can realize sensitive detection of microwave quantum signals based on quantum correlation characteristics in the case where the background thermal noise intensity is unknown. 本发明涉及一种微波量子关联检测装置及方法，该装置包括一个单频连续光纤激光器，单频连续光纤激光器的出射光路上设有电光调制器；电光调制器的出射光路上顺次设有窄带滤波器、光衰减器以及光分束器，光分束器的反射光路和透射光路上分别设有单光子探测器，两个单光子探