Abstract: Extended cavity diode laser devices and methods of fabrication are provided, wherein the diode laser devices comprise, in the longitudinal direction, an amplifier section, a passive propagation section, and a Bragg section. The amplifier section, the propagation section, and the Bragg section are arranged between a front facet and a rear facet, wherein an active layer is formed in of the amplifier section over the entire length of the amplifier section and, in the Bragg section, a surface grating extends over the entire length of the Bragg section, and the surface grating is formed by a plurality of grooves spaced apart from each other in the longitudinal direction.

Abstract: The present invention relates to an to an optical device comprising a micro-optical system and a retainer, and to a method for producing an optical device. In the case of the device according to the invention, the micro-optical system (10) is fastened in such a way that the micro-optical system is oriented in relation to a surface (50) of the retainer (60). The device is characterized in that the retainer (60) has a round, tapered recess (40) and the micro-optical system (10) is fastened on a spherical cap (20) and the spherical cap (20) is fastened to the retainer (60), wherein the spherical cap (20) at least partially protrudes into the recess (40) and lies against a partial surface (30) of the recess (40) or an edge (41) in the recess (40), wherein the spherical cap (20) is fastened to the retainer (60) in the recess (40), but is not fastened where the spherical cap lies in contact.

Abstract: The present invention relates to an to an optical device comprising a micro-optical system and a retainer, and to a method for producing an optical device. In the case of the device according to the invention, the micro-optical system (10) is fastened in such a way that the micro-optical system is oriented in relation to a surface (50) of the retainer (60). The device is characterized in that the retainer (60) has a round, tapered recess (40) and the micro-optical system (10) is fastened on a spherical cap (20) and the spherical cap (20) is fastened to the retainer (60), wherein the spherical cap (20) at least partially protrudes into the recess (40) and lies against a partial surface (30) of the recess (40) or an edge (41) in the recess (40), wherein the spherical cap (20) is fastened to the retainer (60) in the recess (40), but is not fastened where the spherical cap lies in contact.

Abstract: A method of manufacturing a multilayered cementitious product comprising the steps of combining a cementitious material with water within a mixing container so as to form an aqueous slurry discharging the slurry from said mixing container through an outlet onto a support and inserting a setting accelerator into said slurry at or close to the outlet of the mixing container.