Abstract: The invention inter alia relates to a method of receiving an optical-duo-binary, ODB, signal (S), which has a predefined ODB-transmission bit-rate (B), using a photoreceiver, said method comprising the step of filtering the ODB signal using a filter (10) which provides a frequency peak in the photoreceiver's frequency response located in the spectral range between 30% and 70% of the predefined ODB-transmission bit-rate.

Abstract: The invention relates to an optical module 10) comprising a guiding element (30) adapted to guide optical radiation (P); a converting element (50, 200) adapted to convert received electrical energy into optical radiation or to convert received optical radiation into electrical energy; a mirror (70) arranged in the beam path (40) between the optical guiding element and the converting element and configured to optically connect the guiding element and the converting element; and a carrier (20) having a first surface section (22) for carrying the mirror and a second surface (23) section for carrying the converting element. The carrier is made of polymer material.

Abstract: An embodiment of the invention relates to an optical component (10, 300) for processing optical signals comprising a rhombic prism (20) having a first surface (SF1), a second surface (SF2) that is parallel to the first surface (SF1), a third surface (SF3) that is angled relative to the first and second surfaces (SF1, SF2) and connects the first and second surfaces (SF1, SF2), and a fourth surface (SF4) that is parallel to the third surface (SF3) and connects the first and second surfaces (SF1, SF2), wherein the third surface (SF3) is covered by a polarization dependent layer (PDL) capable of transmitting radiation having a first polarization and capable of reflecting radiation having a second polarization, said first and second polarizations being perpendicular to each other.

Abstract: An embodiment of the invention relates to a system comprising an optical device (10) and an evaluation device (20) for characterizing the optical device. The optical device comprising a 90° optical hybrid unit (30) having a first and second optical input (30E1, 30E2) and at least two optical outputs (30A1-30A4) wherein optical output signals (So1-So4) leaving the optical outputs have optical phase differences between each other of 90° or multiple thereof; a first photodetector (P1) connected to a first optical output (30A1) and a second photodetector (P2) connected to a second optical output (30A2), wherein the first optical output emits a first optical output signal (So1) and the second optical output emits a second optical output signal (So2), said second optical output signal having an optical phase difference of 180° relative to the first optical output signal; and a first transimpedance amplifier (Tr1) connected to the first and second photodetectors (P1, P2).

Abstract: An arrangement including an electrical conductor track carrier and a component applied on the conductor track carrier. The component is a fiber-optoelectronic component and has: a housing, at least one electro-optical or optoelectronic component, at least one fiber-optic interface connected to the electro-optical or optoelectronic component, and at least one electrical interface for connecting the component on the conductor track carrier. The electrical interface has at least one bent electrical soldering connection element which is attached by one end to a base connection section of the housing base and extends from there laterally toward the outside so that the other end of the soldering connection element projects laterally and is soldered laterally outside the outer housing contour on the conductor track carrier. The soldering connection element is bent away from the base connection section so that the base connection section is at a distance from the conductor track carrier.

Abstract: A detector module for the reception of optical signals (SE) including a module housing having at least one electrical and at least one optical bushing, at least one electrical assembly connected to the electrical bushing, and at least one optical assembly connected to the optical bushing, the electrical and optical assemblies being arranged within the module housing, the optical and electrical assemblies being connected to one another via at least one optical interface, and the electrical assembly having at least one photodiode for converting the optical output signals of the optical assembly into electrical signals. The optical assembly has at least one collimator and on the output side transmits at least one beam comprising collimated electromagnetic rays running parallel to one another via a free-radiating connection as optical interface to the electrical assembly, and the electrical assembly receives the beam from the optical assembly via the free-radiating connection.

Abstract: The invention relates to an electronic circuit for transmitting high-frequency signals. Said electronic circuit comprises an amplification circuit featuring frequency-dependent amplification which remains the same or drops in a vicinity of a threshold frequency (fth) towards higher frequencies. The electronic circuit further comprises an equalizer circuit which is mounted behind the amplification circuit and has a frequency pass that increases in the vicinity of the threshold frequency (fth) towards higher frequencies.