Abstract: A device for the position control of a laser machining beam relative to topographical structural markers in surfaces of workpieces, includes a control mechanism, a laser beam feed mechanism for providing a laser machining beam, and a laser beam positioning mechanism, and an optical recognition mechanism for the structural markers with an illumination mechanism for producing a parallel beam bundle, which illuminates the surface with the structural markers to be recognized in a scanning field, and a camera detecting the scanning field for recording the beam bundle, which is reflected by the surface and changed by the structural markers, wherein the camera image can be evaluated by the control mechanism to recognize the position of the structural markers and for the corresponding position control of the laser machining beam.

Abstract: A laser arrangement includes an optical resonator having a V arrangement of two resonator branches. At least one active medium includes an active volume associated with each resonator branch. The arrangement also includes folding element that is highly reflective for a fundamental wavelength of the laser arrangement and an optical pump imaging system configured to unidirectionally pump the two resonator branches. The optical pump imaging system includes a common objective lens for both resonator branches. The folding element is transparent for the pump wavelength.

Abstract: A method is described for the manufacture of structured flexible metallic patterns in which a metallic layer on a flexible substrate is structured using laser ablation. The flexible patterns manufactured in this fashion may be used as interposers (strap) for RFID tags or RFID antennas.