Abstract: In a method for operating a vehicle which has a communication interface, a position-determining unit and at least one road data set-determining unit, a database road data set is received by the communication interface, which data set is presumably made available by the database which is arranged externally with respect to the vehicle and which is representative of the position-dependent, road-related property. Depending on the database road data set and a vehicle road data set which is assigned thereto in terms of position, a trust characteristic value is determined which is representative of the level of trust in further database road datasets which relate to predefinable positions of the vehicle.

Abstract: A fiber coupler with an inner tube, an inner fiber arranged within the inner tube and several outer fibers arranged around the inner fiber, is disclosed, wherein said fiber coupler tapers in the longitudinal direction of the inner fiber from a main section to a terminal section and the inner cross section on the inner tube corresponds to the diameter of the inner fiber along the tapering section of the fiber coupler.

Abstract: A fiber coupler with an inner tube, an inner fiber arranged within the inner tube and several outer fibers arranged around the inner fiber, is disclosed, wherein said fiber coupler tapers in the longitudinal direction of the inner fiber from a main section to a terminal section and the inner cross section on the inner tube corresponds to the diameter of the inner fiber along the tapering section of the fiber coupler.

Abstract: A laser system, which is used in material processing to produce a radiation line of small width and uniform high intensity in the longitudinal direction, produces radiation that has different mode numbers M2 perpendicular to the propagation direction.

Abstract: A laser system, which is used in material processing to produce a radiation line of small width and uniform high intensity in the longitudinal direction, produces radiation that has different mode numbers M2 perpendicular to the propagation direction.

Abstract: In a method for operating machines (138) with a plurality of shafts (102, 110, 111), in which the shafts (102, 110, 111) are each driven, synchronized with one another, by individual drive mechanisms (103) belonging to them, in accordance with an electronic, chronological guide shaft function, which corresponds to an instantaneous position of a guide shaft L, and the motions of a plurality of derived shafts (102, 110, 111) are derived from the guide shaft L in accordance with conversion functions that correspond to respective predetermined mechanical conversions (106, 107, 108, 109) with respect to the guide shaft L, it is proposed, in order to improve the method in such a way that—particularly when there is a large number of shafts to be regulated—simple startup at comparatively little expense for equipment is permitted, that all the shafts (102) of at least one group (117) of shafts, which correspond to one another in terms of the conversion (106, 107, 108, 109), obey an electronic, chronological following

Abstract: In a method for operating machines (138) with a plurality of shafts (102, 110, 111), in which the shafts (102, 110, 111) are each driven, synchronized with one another, by individual drive mechanisms (103) belonging to them, in accordance with an electronic, chronological guide shaft function, which corresponds to an instantaneous position of a guide shaft L, and the motions of a plurality of derived shafts (102, 110, 111) are derived from the guide shaft L in accordance with conversion functions that correspond to respective predetermined mechanical conversions (106, 107, 108, 109) with respect to the guide shaft L, it is proposed, in order to improve the method in such a way that—particularly when there is a large number of shafts to be regulated—simple startup at comparatively little expense for equipment is permitted, that all the shafts (102) of at least one group (117) of shafts, which correspond to one another in terms of the conversion (106, 107, 108, 109), obey an electronic, chronologica

Abstract: An arrangement which generates red, green and blue laser radiation comprise a laser radiation source whose first beam (&lgr;l) is split in the infrared wavelength range, wherein the first part of this beam is frequency-doubled and green light (&lgr;G) results and another part is used to generate light of the primary colors red (&lgr;R) and blue (&lgr;B). Another part of the first beam (&lgr;l) is fed to a wavelength converter which generates another beam (&lgr;2, &lgr;4) in the infrared wavelength range which has a greater wavelength than the first beam (&lgr;l), further, the colors red (&lgr;R) and blue (&lgr;B) result from the further beam (&lgr;2, &lgr;4) or from a part thereof by another nonlinear process by sum frequency mixing or by frequency doubling or by sum frequency mixing and frequency doubling.

Abstract: A fiber amplifier is disclosed comprising a signal source (oscillator), an amplifier fiber and a pump laser. The amplifier fiber is arranged between two polarizers and a portion of the beam that is depolarized in the amplifier fiber is coupled out at the amplifier output, returned to the amplifier input, coupled into the amplifier fiber with the radiation from the signal source and amplified again, and another portion, as linearly polarized beam, exits the fiber amplifier as useful beam.

Abstract: An RGB laser radiation source comprising a first laser radiation source whose first beam (1) is divided in the infrared wavelength region, wherein the first part thereof is frequency-doubled and green (G) light results and another part thereof is used to generate light of another primary color. It is wherein a second beam (2) is split in the infrared wavelength region from a second laser radiation source, wherein a first part of the second beam (2) together with a second part of the first beam (1) is supplied to a first sum frequency mixing and red (R) light results, and, further, a second part of the second beam (2) is frequency-doubled. This frequency-doubled beam (3) together with a third part of the first beam (1) is supplied to a second sum frequency mixing and blue (B) light results.