Abstract: A mirror for a laser is specified, the mirror including a layer stack having at least a first layer containing a first material and at least a second layer containing a second material, the first material having a first refractive index and the second material having a second refractive index, the first refractive index and the second refractive index differing by at least 0.2, and the reflectivity of the mirror in the event of a first exit medium adjoining the mirror, the first exit medium being translucent at least at points to electromagnetic radiation at a specifiable wavelength, differing by less than 10% from the reflectivity of the mirror in the event of a second exit medium adjoining the mirror. the second exit medium differing from the first exit medium and being translucent at least at points to electromagnetic radiation at the specifiable wavelength, for a wavelength range of at least ±20 nm about the specifiable wavelength. Moreover, a laser and a laser component are specified.

Abstract: In an embodiment a semiconductor laser includes a semiconductor body having a plurality of resonator regions, wherein the resonator regions are arranged side by side along a lateral direction, each resonator region having an active region configured to generate radiation, wherein the semiconductor body extends between two side faces, wherein the resonator regions are configured to emit laser radiation at one of the two side faces, and a layer sequence attached to at least one of the side faces, wherein the layer sequence forms at least part of a resonator mirror for at least one resonator region.

Abstract: An optoelectronic semiconductor device comprises a plurality of laser devices. Each of the laser devices is configured to emit electromagnetic radiation. The laser devices are horizontally arranged. A first laser device of the plurality of laser devices is configured to emit electromagnetic radiation having a first wavelength different from the wavelength of a further laser device of the plurality of laser devices. A difference between the first wavelength and the wavelength of the further laser device is less than 20 nm.

Abstract: The invention relates to a radiation-emitting semiconductor chip having the following features:—a semiconductor body including an active region which, during operation, generates electromagnetic radiation and is arranged in a resonator, —at least one recess in the semiconductor body, which recess completely penetrates the active region, wherein—the recess has a first lateral face and a second lateral face opposite the first lateral face, and—the first lateral face has a first coating which specifies a reflectivity for the electromagnetic radiation of the active region, and/or—the second lateral face has a second coating which specifies a reflectivity for the electromagnetic radiation of the active region. The invention further relates to a method for producing such a semiconductor chip.

Abstract: According to embodiments, a semiconductor laser comprises a semiconductor layer stack, which comprises an active zone for generating radiation. The semiconductor laser also comprises a first resonator mirror, a second resonator mirror, and an optical resonator, which is arranged between the first and second resonator mirrors and extends in a direction parallel to a main surface of the semiconductor layer stack. A reflectance R1 of the first resonator mirror is wavelength-dependent, so that R1 or a product R of R1 and the reflectance R2 of the second resonator mirror in a wavelength range decreases from a target wavelength ?0 of the laser to ?0+?? from a value R0, wherein ?? is selected as a function of a temperature-dependent shift in an emission wavelength.

Abstract: An optoelectronic semiconductor device comprises a plurality of laser devices. Each of the laser devices is configured to emit electromagnetic radiation. The laser devices are horizontally arranged. A first laser device of the plurality of laser devices is configured to emit electromagnetic radiation having a first wavelength different from the wavelength of a further laser device of the plurality of laser devices. A difference between the first wavelength and the wavelength of the further laser device is less than 20 nm.

Abstract: An edge emitting semiconductor laser and a method for operating an edge emitting semiconductor laser are disclosed.

Abstract: The invention relates to a high-pressure line for conveying a fluid under high pressure to a consumer, in particular for supplying fuel under injection pressure to one or more injectors (14) of a combustion engine. It comprises a first (1), a second (2), and a third line section (3), which line sections (1, 2, 3) are flowed through successively in the intended operation of the high-pressure line and are jointly formed by a ones-piece component (4) made of metal, wherein the first line section (1) and the third line section (3) each have a smaller flow cross-section than the second line section (2) arranged between them.

Abstract: An edge emitting semiconductor laser and a method for operating an edge emitting semiconductor laser are disclosed.

Abstract: A drilling system includes a control system that monitors operating parameters so as to protect the drilling machine from damage and increases drilling operation efficiency. A method of using a hydraulic system of a percussive drill as a sensing system includes sensing a drill bit blow-out event by measuring changes in the operating hydraulic fluid pressure in the hydraulic system used to operate the percussive drill.

Abstract: A drilling system includes a control system that monitors operating parameters so as to protect the drilling machine from damage and increases drilling operation efficiency. A method of using a hydraulic system of a percussive drill as a sensing system includes sensing a drill bit blow-out event by measuring changes in the operating hydraulic fluid pressure in the hydraulic system used to operate the percussive drill.

Abstract: The invention relates to a high-pressure line for conveying a fluid under high pressure to a consumer, in particular for supplying fuel under injection pressure to one or more injectors (14) of a combustion engine. It comprises a first (1), a second (2), and a third line section (3), which line sections (1, 2, 3) are flowed through successively in the intended operation of the high-pressure line and are jointly formed by a ones-piece component (4) made of metal, wherein the first line section (1) and the third line section (3) each have a smaller flow cross-section than the second line section (2) arranged between them.

Abstract: A method is provided for producing a sliding rail of a longitudinal adjustment device for a vehicle seat, in which the longitudinal adjustment device has at least one pair of rails having two sliding rails and having sliding and/or rolling elements, the two sliding rails can be moved in the longitudinal direction against one another, the sliding and/or rolling elements are disposed between the sliding rails, and the sliding rails have contact tracks by which the sliding and/or rolling elements are in contact. A sliding rail is produced and then painted. Subsequently, at least one contact track is irradiated with a laser. In this way the layer of paint located on the contact track is removed.

Abstract: A screen unit is connected via a first connection to a control unit. The control unit is connected via a second connection to an output unit. The control unit and also the screen unit are jointly supplied with electrical energy via the second connection. Moreover, data for controlling the screen unit are transmitted to the latter via both connections. In this context, the screen unit additionally provides a touch panel, wherein the touch panel is connected only to the control unit.

Abstract: A drilling system includes a control system that monitors operating parameters so as to protect the drilling machine from damage and increases drilling operation efficiency. A method of using a hydraulic system of a percussive drill as a sensing system includes sensing a drill bit blow-out event by measuring changes in the operating hydraulic fluid pressure in the hydraulic system used to operate the percussive drill.

Abstract: A method is provided for producing a sliding rail of a longitudinal adjustment device for a vehicle seat, in which the longitudinal adjustment device has at least one pair of rails having two sliding rails and having sliding and/or rolling elements, the two sliding rails can be moved in the longitudinal direction against one another, the sliding and/or rolling elements are disposed between the sliding rails, and the sliding rails have contact tracks by which the sliding and/or rolling elements are in contact. A sliding rail is produced and then painted. Subsequently, at least one contact track is irradiated with a laser. In this way the layer of paint located on the contact track is removed.

Abstract: A fuel element for a nuclear reactor has a fuel rod bundle, at least one spacer with cells defined by at least one web section made from a first material and several guide tubes each running through a cell and axially fixed thereto made from a second material. The first and second materials have differing thermal expansion coefficients. The connection between the guide tube and the spacer is embodied as follows: first and second projections are directly or indirectly fixed to the guide tube. The first projections are disposed in a first axial position and the second projections are arranged at a second axial position and the projections each engage in an opening through the web section to give an axially-acting undercut.

Abstract: A screen unit is connected via a first connection to a control unit. The control unit is connected via a second connection to an output unit. The control unit and also the screen unit are jointly supplied with electrical energy via the second connection. Moreover, data for controlling the screen unit are transmitted to the latter via both connections. In this context, the screen unit additionally provides a touch panel, wherein the touch and is connected only to the control unit.

Abstract: A control rod for a pressurized-water nuclear reactor contains an absorber rod which is arranged in a casing tube. At least in a lower section, the absorber rod is provided with at least one recess which takes up at most a portion of the circumferential surface of this section. This reduces problems associated with an expansion in the volume of the absorber rod.

Abstract: A control rod for a pressurized-water nuclear reactor contains an absorber rod which is arranged in a casing tube. At least in a lower section, the absorber rod is provided with at least one recess which takes up at most a portion of the circumferential surface of this section. This reduces problems associated with an expansion in the volume of the absorber rod.