The difference lightwave signal detection and/or the mannered null difference lightwave signal

摘要

Obtaining a simple digital realization of the method for detecting the differential optical signal without sacrificing the present invention relates sensitivity. The method for evaluating or detecting and / SOLUTION: A differential optical signal, the first light source and two (S1, S2), the receiver of one 1 (E) is provided at least, the at least two The clocked sequentially in time of light, it sends each phase, one receiver receives at least the alternating light component clock synchronization originating from (S1, S2) the first light source at least said first light source . The intensity of the incident light by (S1, S2, K) one light source is controlled alternating light component was a clock synchronized to occur between the phases different to zero the receiver in (E) at least in the measuring device . In order to control the intensity of the incident light, the received signal is detected for the phase position receiver in (E), is formed by current addition at the receiver adjustment amount (R), or directly by this .