DETECTOR DEAD TIME EFFECT IN QKD SYSTEMS

摘要

The present relates to a QKD receiver (300-700) comprising an optical system (110), at least two detectors (120, 130, 220 230), a processing unit (140) and a buffer (170, 270), characterized in that the buffer (170, 270) is adapted to temporarily store an information that the receiver (300-700) sends back to the emitter via a service channel once one of the detectors receives quantum data,, so as to introduce a delay time into the communication process to assure that the communication restarts only after a deadtime of all the detectors (120, 130) has lapsed.