Abstract: A method and system for delivering laser pulses achieves the delivery of high quality laser pulses at the location of an application. The method includes the steps of: generating laser pulses, amplifying the laser pulses, temporally stretching the amplified laser pulses, and propagating the amplified laser pulses through an optical delivery fiber of desired length, wherein the laser pulses are temporally compressed in the optical delivery fiber and wherein the laser pulses undergo nonlinear spectral broadening in the optical delivery fiber.

Abstract: A rotary encoder system for registering the rotary angle position and/or angular speed of a rotary shaft which extends along an axis of rotation, including at least two optical marks at the rotary shaft, an optical sensor with a pixel matrix having pixel points, an imaging device for imaging each mark in a substantially axial direction on the pixel matrix as a mark image, and an evaluation device for reading and evaluating the pixel matrix in order to determine data in relation to the rotary angle position and/or angular speed. Further, the marks, the imaging device and pixel points are embodied in such a way that the mark images on the pixel matrix have at least the area of a pixel point, and the evaluation device is embodied to establish the location of the centroids of the mark images on the pixel matrix.

Abstract: TOF distance sensor for capturing the distance to an object by receiving radiation reflected by the object, said radiation emanating from a radiation source modulated by a modulation frequency, comprising a pixel matrix for recording a pixel image. The pixel matrix consists of demodulation pixels which are designed for rear-side reception of the radiation. The demodulation pixels comprise a conversion region for generating charge carriers from the received radiation, and a separating device for separating the charge carriers in accordance with the modulation frequency, and also a stop for partitioning-off the conversion region from the separating device in relation to the charge carriers, and also an aperture for passing the charge carriers from the conversion region into the separating device. The TOF distance sensor is embodied in such a way that in each case at least two demodulation pixels form a common aperture.

Abstract: A method and system for delivering laser pulses achieves the delivery of high quality laser pulses at the location of an application. The method includes the steps of: generating laser pulses, amplifying the laser pulses, temporally stretching the amplified laser pulses, and propagating the amplified laser pulses through an optical delivery fiber of desired length, wherein the laser pulses are temporally compressed in the optical delivery fiber and wherein the laser pulses undergo nonlinear spectral broadening in the optical delivery fiber.

Abstract: The image sensor according to the invention is an image sensor with a matrix of pixels for generating a resulting image with a higher dynamic range from the acquisition of two original images, wherein the pixels of the image sensor are designed as demodulation pixels, wherein each comprises a conversion region for generating charge carriers from the received radiation, a separation device for temporally separating the generated charge carriers into two charge carrier streams, a memory device with two memories for separately storing the charge carriers of the two charge carrier streams, and a read-out device for converting the stored charge carriers into electrical signals, wherein the separation device is designed to carry out the separation of the charge carriers generated in one period into two different time periods.

Abstract: An optical resonator is provided made of low-outgassing materials, including at least one chamber, a non-linear crystal arranged in the chamber, and an array of mirrors arranged in the chamber and including a plurality of mirrors for deflecting a light beam. To specify such a resonator which is low-outgassing and which ensures fine adjustment of the optical elements at the same time, the present invention proposes that the non-linear crystal and at least one mirror of the array of mirrors is arranged on one movable carrier each, wherein the said carrier is fabricated from a low-outgassing material and seals the chamber. Furthermore, a sealing system is provided including a housing, an optical element and a sealing element of indium or indium alloy, which is arranged between the housing and the optical element, wherein the optical element has a lateral surface and the sealing element is arranged on the lateral surface.

Abstract: The invention relates to a laser apparatus comprising a laser radiation source which generates pulsed laser radiation, wherein the laser radiation has spectral components in at least two wavelength ranges that differ from one another—a first wavelength range (W1) and a second wavelength range (W2)—, and comprising a dispersion control element comprising at least one dielectric multilayer mirror (MCM), wherein the laser radiation is reflected one or more times at the multilayer mirror (MCM). It is an object of the invention to provide a laser apparatus which is improved over the prior art. In particular, the setup thereof should be less complex, require less adjustment outlay and—in particular—be less sensitive to external influences.

Abstract: The invention relates to an apparatus for generating temporally spaced apart light pulses, comprising a first laser (11) which generates a first sequence (I) of light pulses at a first repetition rate, a second laser (12) which generates a second sequence (II) of light pulses at a second repetition rate, and at least one actuating member which influences the first repetition rate and/or the second repetition rate. It is an object of the invention to provide an apparatus for generating temporally spaced apart light pulses which is improved in relation to the prior art.

Abstract: A method and system generates two synchronized trains of laser pulses at different wavelengths, wherein the two pulse trains are temporally synchronized and have a stable phase relation, and wherein the wavelength of one of the pulse trains is de-tunable. The method includes the steps of: generating a train of ultra-short seed laser pulses; splitting the train of seed laser pulses into a first pulse train and a second pulse train; and frequency-shifting the first pulse train by soliton self-frequency shift in an optically pumped waveguide having anomalous dispersion, wherein the spectrum of the frequency-shifted first pulse train is de-tunable by varying the pump power.

Abstract: A method and system generates two synchronized trains of laser pulses at different wavelengths, wherein the two pulse trains are temporally synchronized and have a stable phase relation, and wherein the wavelength of one of the pulse trains is de-tunable. The method includes the steps of: generating a train of ultra-short seed laser pulses; splitting the train of seed laser pulses into a first pulse train and a second pulse train; and frequency-shifting the first pulse train by soliton self-frequency shift in an optically pumped waveguide having anomalous dispersion, wherein the spectrum of the frequency-shifted first pulse train is de-tunable by varying the pump power.

Abstract: A method and system for delivering laser pulses achieves the delivery of high quality laser pulses at the location of an application. The method includes the steps of: generating laser pulses, amplifying the laser pulses, temporally stretching the amplified laser pulses, and propagating the amplified laser pulses through an optical delivery fiber of desired length, wherein the laser pulses are temporally compressed in the optical delivery fiber and wherein the laser pulses undergo nonlinear spectral broadening in the optical delivery fiber.

Abstract: A TOF distance sensor is proposed, for measuring a distance from an object, comprising an electronics apparatus for generating a modulation signal and for generating four correlation signals, which are phase shifted with respect to one another and which have the same period as the modulation signal; a radiation source for emitting radiation, which is modulated by the modulation signal; a reception apparatus, which has a predetermined spatial relationship with respect to the radiation source, for receiving radiation reflected by the object; a correlation apparatus for correlating the received radiation or a corresponding variable with respectively one of the four correlation signals in order to form four corresponding correlation values; a difference-forming apparatus for forming two difference correlation values from the difference between respectively two of the correlation values; a calculation apparatus embodied to calculate the distance with a predetermined linear dependence on the two difference correlat

Abstract: A beam combining device includes a plurality of separate input beam paths and an output beam path for combining a plurality of input beams to an output beam. One or a plurality of Risley prism pairs are assigned to each input beam path of the beam combining device. The prism pairs deflect the input beam in an adjustable direction. A device for deflecting a light beam includes a Risley prism pair that includes two prisms arranged one behind the other in the light beam path. At least one of the two prisms is mounted in a rotatable manner. An electromotive drive brings about a rotary movement of the rotatable prism. The electromotive drive is a piezoelectric vibration drive having a mechanical resonator and a piezoelectric element coupled thereto. The resonator bears against a friction wheel connected to the rotatable prism.

Abstract: The invention relates to a kinematic mount having a base part (8) and a bracket part (7), which is positioned on the base part (8), and which is tiltable relative thereto around at least one tilting axis. The invention provides that the mount has at least one pivot lever (22, 23), which is connected to the base part (8) by way of a first joint (25), and which is connected to the bracket part (7) by way of a second joint (27, 24, 28), which is spaced apart from the first joint (25) in a longitudinal direction of the pivot lever (22, 23). The base part (8), the pivot lever (22, 23), and the bracket part (7) form a gear unit, which converts a movement of an actuator (11, 12) impacting the pivot lever (22, 23) into a tilting of the bracket part (7) relative to the base part (8).

Abstract: A method for generating continuous wave laser radiation in the deep ultraviolet (DUV) spectral range includes the steps of: generating first laser radiation in the ultraviolet spectral range between 205 nm and 265 nm at a first power level, wherein the generation of the first laser radiation involves not more than two frequency conversion steps; generating second laser radiation in the infrared spectral range at a wavelength of more than 900 nm at a second power level; and sum frequency mixing the first and second laser radiation for generating the laser radiation in the deep ultraviolet spectral range below 205 nm. Moreover, a laser system generates continuous wave laser radiation in the DUV spectral range. According to a preferred embodiment, the DUV laser radiation is tunable in wavelength.

Abstract: The invention relates to a device for generating temporally distant light pulses, said device comprising a first light source (51) generating a first sequence (I) of light pulses at a first repetition rate, and a second light source (52) generating a second sequence (II) of light pulses at a second repetition rate. It is the object of the present invention to provide an improved device for generating temporally distant light pulses. This object is inventively achieved by providing for at least one actuator element which influences the first and/or the second repetition rate, and a control element (61) which charges the actuator element with a periodical modulation signal (62) for periodical variation of the first and/or second repetition rate.

Abstract: An apparatus for generating laser radiation at a frequency multiplied as compared with a base frequency, has an optical resonator, in which input laser radiation circulates resonantly at the base frequency, and at least one conversion element through which the input laser radiation circulating in the optical resonator radiates, and which converts this radiation, at least in part, into output laser radiation at the multiplied frequency. At least one compensation element is provided, through which the input laser radiation circulating in the optical resonator also radiates, and which absorbs this radiation, in part, wherein the compensation element balances out a temperature-dependent variation of the optical path length of the input laser radiation in the conversion element, at least in part. Furthermore, a system generates laser radiation.

Abstract: An optical resonator is provided made of low-outgassing materials, including at least one chamber, a non-linear crystal arranged in the chamber, and an array of mirrors arranged in the chamber and including a plurality of mirrors for deflecting a light beam. To specify such a resonator which is low-outgassing and which ensures fine adjustment of the optical elements at the same time, the present invention proposes that the non-linear crystal and at least one mirror of the array of mirrors is arranged on one movable carrier each, wherein the said carrier is fabricated from a low-outgassing material and seals the chamber. Furthermore, a sealing system is provided including a housing, an optical element and a sealing element of indium or indium alloy, which is arranged between the housing and the optical element, wherein the optical element has a lateral surface and the sealing element is arranged on the lateral surface.

Abstract: The invention relates to an optical resonator made of low-outgassing materials, comprised of at least one chamber, a non-linear crystal arranged in the chamber, and an array of mirrors arranged in the chamber and comprised of a plurality of mirrors for deflecting a light beam. To specify such a resonator which is low-outgassing and which ensures fine adjustment of the optical elements at the same time, the present invention proposes that the non-linear crystal and at least one mirror of the array of mirrors is arranged on one movable carrier each, wherein the said carrier is fabricated from a low-outgassing material and seals the chamber.

Abstract: A method for generation of electromagnetic radiation has the following method steps: generation of electromagnetic radiation at a useful frequency, division of the electromagnetic radiation into a useful beam and a secondary beam, frequency shift of the electromagnetic radiation of the secondary beam, control of the useful frequency as determined by a manipulated variable, wherein the manipulated variable is derived from the frequency-shifted radiation of the secondary beam.