Abstract: A system and method with a controlling component, which can be configured for monitoring mobile components. The controlling component adjusts the scheduling of a plurality of mobile components at the same time in case of detecting at least one pre-defined event. The plurality of mobile components can be all components monitored or a subgroup thereof. The controlling component is configured for monitoring mobile components with a frequency of monitoring of at least one time a minute (1/min.) and for adjusting the scheduling of a plurality of mobile components in case of detecting at least one pre-defined event. It can alternatively or additionally also be configured for monitoring mobile components and for adjusting the scheduling of a plurality of mobile components with a frequency of adjusting of at least one time a minute (1/min.).

Abstract: Optical Raman fiber amplifier (20), with an amplification fiber, wherein at least one section thereof has a ratio of Raman gain coefficient gR to Brillouin gB gain coefficient of gR/gB larger than 0.001 at the fiber operating temperature and a vacuum wavelength of 1064 nm. The invention further refers to a corresponding light source, the use of a fiber and a method of amplifying light.

Abstract: Optical Raman fiber amplifier (20), with an amplification fiber, wherein at least one section thereof has a ratio of Raman gain coefficient gR to Brillouin gB gain coefficient of gR/gB larger than 0.001 at the fiber operating temperature and a vacuum wavelength of 1064 nm. The invention further refers to a corresponding light source, the use of a fiber and a method of amplifying light.

Abstract: A fibre laser comprises a fibre light guide (3) having an active medium, a laser as pumping source (1) and a first pair of Bragg gratings (6, 8) forming a first resonator (4). The first pair of Bragg gratings (6, 8) resonates the pump laser (1) and there is provided a second pair of Bragg gratings (7, 9) resonating at the output wavelength of the fibre laser.

Abstract: An optical fiber amplifier includes a length of silica optical fiber having a core doped with neodymium, a first cladding and a second cladding each with succeeding lower refractive indices, where the first cladding diameter is less than 10 times the diameter of the core. The doping concentration of the neodymium is chosen so that the small signal absorption for 816 nm light traveling within the core is less than 15 dB/m above the other fiber losses. The amplifier is optically pumped with one laser into the fiber core and with another laser into the first cladding.

Abstract: A fibre laser comprises a fibre light guide (3) having an active medium, a laser as pumping source (1) and a first pair of Bragg gratings (6, 8) forming a first resonator (4). The first pair of Bragg gratings (6, 8) resonates the pump laser (1) and there is provided a second pair of Bragg gratings (7, 9) resonating at the output wavelength of the fibre laser.

Abstract: A rolling mill stand with at least one manipulator for axially moving the rolls, particularly the work rolls, of the rolling mill stand. The rolls are supported and secured in chocks. The chocks are guided in the housings of the rolling mill stand so as to be vertically slidable in the direction of the rolling force. The chocks include pushing blocks which guide horizontally in the direction of the rolling axes. The manipulators supported by the housings act on the pushing blocks from the operator side. The manipulator is connected to the pushing block through a gear arrangement for transmitting the adjusting distance of the manipulator. The gear arrangement operates without slipping.