Patent application number | Description | Published |
20120044966 | LIGHT SOURCE WITH A DIODE LASER AND A LARGE NUMBER OF OPTICAL FIBERS - A light source, e.g., for optical excitation of a laser device, includes a diode laser having a large number of emitters and a light-guiding device, the light-guiding device including a large number of optical fibers. Each fiber has a first end and a lateral surface, the first ends being arranged relative to the emitters in such a manner that light generated by the emitters is coupled into the first ends of the optical fibers, the optical fibers being arranged in abutting relationship along their lateral surfaces at least in the region of their first ends. The optical fibers are connected in the region of their first ends to a fiber support. | 02-23-2012 |
20120068369 | METHOD FOR PRODUCING A LIGHT SOURCE HAVING A DIODE LASER AND A PLURALITY OF OPTICAL FIBERS - A method is described for producing a light source, in particular a light source for optically exciting a laser device, for example a laser device of a laser ignition system of an internal combustion engine, including a diode laser having a plurality of emitters and a fiber optic device. The fiber optic device includes a plurality of optical fibers, each fiber having a first end and a lateral surface area. The first ends are situated relative to the emitters in such a way that light generated by the emitters is injected into the first ends of the optical fibers. The optical fibers are situated in abutment along their lateral surface areas, at least in the region of the first ends of the optical fibers. The method is characterized by the following steps: arranging a plurality of optical fibers which form a fiber section in a subregion, the fiber section being situated between two opposite pressing surfaces; heating the fiber section; and exerting a force on the heated optical fibers with the aid of the pressing surfaces. The force and the heating initially result in deformation of the heated optical fiber. The exerted force and/or a temperature of the optical fibers is/are selected in such a way that the deformation ceases when the optical fibers for the first time fill, at least largely, a region between the pressing surfaces. | 03-22-2012 |
20150136049 | LASER IGNITION DEVICE AND OPERATING METHOD THEREFOR - A laser ignition device for an internal combustion engine, in which the laser ignition device has at least one laser spark plug and a cooling device for temperature control, in particular cooling, of the laser spark plug. The cooling device has a cooling circuit, containing a coolant, which is thermally connectable to at least one component of the laser spark plug, a volume of the coolant contained in the cooling circuit being less than or equal to approximately 50% of a compression volume of a cylinder of the internal combustion engine, which may be less than or equal to approximately 10% of a compression volume of the cylinder of the internal combustion engine. | 05-21-2015 |