Patent ID: 8391727

Claim:
A detector module for the reception of optical signals comprising: a module housing having an electrical bushing and an optical bushing; an electrical assembly connected to the electrical bushing; and an optical assembly connected to the optical bushing, wherein the electrical and optical assemblies are arranged within the module housing, the optical and electrical assemblies being connected to one another via at least one optical interface, wherein the electrical assembly has a photodiode for converting optical output signals of the optical assembly into electrical signals, wherein the optical assembly has a collimator and on an output side transmits a beam comprising collimated electromagnetic rays running parallel to one another via a free-radiating connection as optical interface to the electrical assembly, wherein the electrical assembly receives the beam from the optical assembly via the free-radiating connection, wherein the optical assembly has an optical demodulation device, which converts a phase-modulated optical signal present on an input side into at least one signal pair comprising two amplitude-modulated optical signals that are orthogonal to one another, and wherein the optical assembly transmits the two orthogonal amplitude-modulated optical signals by a respective separate beam to the electrical assembly.