Abstract: A laser pulse spectral broadening apparatus (100) for spectral broadening of laser pulses (1A) comprises a multi-pass cell device (10) with multiple mirror elements, which are arranged for providing a beam path (2) extending from an input section to an output section of the multi-pass cell device (10), wherein the mirror elements comprise focussing mirror elements having a concave curvature, and with a pulse spectral broadening device (20) including at least one optical non-linear medium (21) being arranged in the beam path (2) for spectral broadening of the laser pulses passing the pulse spectral broadening device (20), wherein the mirror elements have a configuration providing multiple passages of the beam path (2) through the pulse spectral broadening device (20), wherein the mirror elements further comprise folding mirror elements having a close to plane shape, wherein the absolute value of the radius of curvature of the folding mirror elements (11, 12) is larger than 10 m, the folding mirror elements spa

Abstract: A height-adjustable device has synchronously height-adjustable lifting devices each having a standing and lifting element, which are height-adjustable relative thereto. The height adjustment is configured to be carried out via pulling elements, formed by redirection devices, to raise the lifting element relative to the standing element. Each pulling element is secured in a non-positive or positive locking manner to lifting devices, and each are configured such that a lengthening in the region of the first lifting device brings about a synchronous shortening in the region of the second lifting device. Each pulling element is constructed to raise only the one lifting element relative to the standing element. The height-adjustable device has a locking device that locks the pulling elements by a non-positive or positive locking engagement on the corresponding one of the pulling elements. The locking device is constructed to synchronise the movement of the pulling elements.

Abstract: A height-adjustable device has synchronously height-adjustable lifting devices each having a standing and lifting element, which are height-adjustable relative thereto. The height adjustment is configured to be carried out via pulling elements, formed by redirection devices, to raise the lifting element relative to the standing element. Each pulling element is secured in a non-positive or positive locking manner to lifting devices, and each are configured such that a lengthening in the region of the first lifting device brings about a synchronous shortening in the region of the second lifting device. Each pulling element is constructed to raise only the one lifting element relative to the standing element. The height-adjustable device has a locking device that locks the pulling elements by a non-positive or positive locking engagement on the corresponding one of the pulling elements. The locking device is constructed to synchronise the movement of the pulling elements.

Abstract: A method of controlling output pulses of a pulse laser device (100) including thin-disk laser medium (10), in particular controlling a carrier-envelope phase and/or an intensity noise of the output pulses, includes pumping thin-disk laser medium (10) of pulse laser device (100) with multiple pump laser diodes (21, 22, 23), having at least one modulated laser diode (21, 22) powered by current source (31, 32) with modulation capability, and controlling the output pulses by modulating the output power of the at least one modulated laser diode (21, 22), which is modulated by controlling a drive current thereof, wherein the pump laser diodes further include at least one stable laser diode (23), having constant output power, and the output power of the at least one modulated laser diode (21, 22) is smaller than the whole output power of the stable laser diode(s) (23). A pulse laser device (100) is also described.

Abstract: A method of controlling output pulses of a pulse laser device (100) including thin-disk laser medium (10), in particular controlling a carrier-envelope phase and/or an intensity noise of the output pulses, includes pumping thin-disk laser medium (10) of pulse laser device (100) with multiple pump laser diodes (21, 22, 23), having at least one modulated laser diode (21, 22) powered by current source (31, 32) with modulation capability, and controlling the output pulses by modulating the output power of the at least one modulated laser diode (21, 22), which is modulated by controlling a drive current thereof, wherein the pump laser diodes further include at least one stable laser diode (23), having constant output power, and the output power of the at least one modulated laser diode (21, 22) is smaller than the whole output power of the stable laser diode(s) (23). A pulse laser device (100) is also described.