Abstract: An apparatus for combining a plurality of coherent laser beams includes at least N?1 phase setting devices configured to set a respective phase (??n) of a respective one of the plurality of coherent laser beams, and a beam combination device configured to combine the plurality of coherent laser beams to form at least one combined laser beam. The beam combination device includes a microlens arrangement having at least two microlens arrays configured to form the at least one combined laser beam.

Abstract: A beam transformer for transforming an input laser beam into a transformed laser beam for use in laser systems for line illumination of an object includes a transparent planar optical element that has a front surface and a back surface, which extend substantially parallel to one another. The optical element has an entrance area and an exit area, and a plurality of reflective surfaces for beam deflection. The beam transformer further includes a cooling device provided at least on the front surface or the back surface of the optical element.

Abstract: An optical arrangement converts an input laser beam into a line-like output beam, which propagates along a propagation direction and which has, in a working plane, a line-like beam cross section extending along a line direction. The optical system includes: a reshaping optical unit having an input aperture, through which the input laser beam is radiated, and an elongate output aperture, elongatedly extending along an aperture longitudinal direction, the reshaping optical unit converting the input laser beam radiated through the input aperture into a beam packet exiting through the output aperture; and a homogenization optical unit which converts the beam packet into the line-like output beam, different beam segments of the beam packet being intermixed and superimposed along the line direction. The aperture longitudinal direction extends in a manner rotated about the propagation direction by a non-vanishing angle of rotation with respect to the line direction.

Abstract: An optical arrangement converts an input laser beam into a line-like output beam, which propagates along a propagation direction and which has, in a working plane, a line-like beam cross section extending along a line direction. The optical system includes: a reshaping optical unit having an input aperture, through which the input laser beam is radiated, and an elongate output aperture, elongatedly extending along an aperture longitudinal direction, the reshaping optical unit converting the input laser beam radiated through the input aperture into a beam packet exiting through the output aperture; and a homogenization optical unit which converts the beam packet into the line-like output beam, different beam segments of the beam packet being intermixed and superimposed along the line direction. The aperture longitudinal direction extends in a manner rotated about the propagation direction by a non-vanishing angle of rotation with respect to the line direction.

Abstract: An apparatus for combining a plurality of coherent laser beams includes at least N?1 phase setting devices configured to set a respective phase (??n) of a respective one of the plurality of coherent laser beams, and a beam combination device configured to combine the plurality of coherent laser beams to form at least one combined laser beam. The beam combination device includes a microlens arrangement having at least two microlens arrays configured to form the at least one combined laser beam.

Abstract: An optical arrangement converts laser beams from at least two laser light sources into a combination beam, which has a beam waist. The optical arrangement has: an optical beam guidance system having at least two separate optical channels for the laser beams, each of the optical channels having an optical terminator for exiting a respective channel output beam of the relevant one of the optical channels; and a deflecting body, which is associated with only one of the optical channels. The deflecting body is configured such that only the respective channel output beam of the associated one of the optical channels is captured and the captured channel output beam is deflected in a direction of a focus region.

Abstract: Methods, devices, and apparatus for generating plasma or laser pulses by radio frequency (RF) excitation pulses are provided. In one aspect, a method includes specifying radio frequency (RF) excitation pulses at least partially as a function of a preceding RF excitation of a medium and outputting a signal to a RF pulse generator, the signal configured to cause the RF pulse generator to generate the specified RF excitation pulses for exciting the medium to generate plasma or laser pulses. The RF excitation pulses is specified to become more strongly reduced in energy when a remaining excitation of the medium by the preceding RF excitation is higher.

Abstract: Methods, devices, and apparatus for generating plasma or laser pulses by radio frequency (RF) excitation pulses are provided. In one aspect, a method includes specifying radio frequency (RF) excitation pulses at least partially as a function of a preceding RF excitation of a medium and outputting a signal to a RF pulse generator, the signal configured to cause the RF pulse generator to generate the specified RF excitation pulses for exciting the medium to generate plasma or laser pulses. The RF excitation pulses is specified to become more strongly reduced in energy when a remaining excitation of the medium by the preceding RF excitation is higher.

Abstract: A micro-optical element includes a resonator substrate, at least one microresonator includes a rotationally symmetrical body mounted on the resonator substrate, and a light-reflecting element including a ring-shaped mirror that surrounds the rotationally symmetrical body.

Abstract: A micro-optical element includes a resonator substrate, at least one microresonator includes a rotationally symmetrical body mounted on the resonator substrate, and a light-reflecting element including a ring-shaped mirror that surrounds the rotationally symmetrical body.

Abstract: A microoptical component for coupling a laser light to microresonators includes at least two microresonators, each having a form of an axially symmetric body disposed on a pedestal, and at least one waveguide for the laser light. The at least two microresonators are disposed on a first substrate having first side walls. The at least one waveguide is disposed on a second substrate having second side walls. The first side walls and the second side walls are fixedly joined.

Abstract: A microoptical component for coupling a laser light to microresonators includes at least two microresonators, each having a form of an axially symmetric body disposed on a pedestal, and at least one waveguide for the laser light. The at least two microresonators are disposed on a first substrate having first side walls. The at least one waveguide is disposed on a second substrate having second side walls. The first side walls and the second side walls are fixedly joined.