Trumpf Photonics, Inc.

Trumpf Laser Gmbh

Stephan Strohmaier

Arne-Heike Meissner-Schenk

Christian Carstens

Gerald Urban

Gerd Hansen

Christoph Tillkorn

Alexander Killi

Thilo Vethake

Steffen Ried

Viorel C Negoita

Yufeng Li

Haiyan An

Tobias Barnowski

A diode laser arrangement includes at least one emitter, first and second cooling devices and a first connecting layer. The emitter is configured to emit a laser beam and is disposed between the first and second cooling devices. The first and second cooling devices are each configured for cooling the emitter. The emitter is connected to the first cooling device by the first connecting layer, and the first connecting layer has a connecting material or is composed of a connecting material selected from a group including gold, a gold alloy, silver, a silver alloy, a silver sintered material, copper, a copper alloy, nickel, a nickel alloy, palladium, a palladium alloy, platinum, a platinum alloy, rhodium, a rhodium alloy, iridium, an iridium alloy, germanium, a germanium alloy, tin, a tin alloy, aluminum, an aluminum alloy, indium, an indium alloy, lead and a lead alloy.

Diode laser assembly and method for producing a diode laser assembly

A diode laser arrangement has a diode laser device and at least one cooling device. The at least one cooling device is arranged on the diode laser device. The at least one cooling device is configured to cool the diode laser device. The at least one cooling device has a contact body and at least one heat conducting insert. The contact body contains a first material or consisting of a first material, and the at least one heat conducting insert has a second material, which is different from the first material, or consisting of a second material, which is different from the first material, and the contact body is arranged on the diode laser device. The at least one heat conducting insert is embedded in the contact body.

Diode laser arrangement and method for producing a diode laser arrangement

A diode laser arrangement includes a diode laser device, first and second cooling elements and at least one spacing device. The laser device and spacing device are mutually spaced apart between the first and second cooling elements. The laser device and the spacing device are disposed on respective first and second outer surfaces of respective cooling elements. The first and second cooling elements cool the laser device. The laser device has first and second diode main surfaces. The first diode main surface is on the first outer surface in a first front region and/or the second diode main surface is on the second outer surface in a second front region. The spacing device places the first outer surface in the first front region parallel to the first diode main surface, and/or the second outer surface in the second front region parallel to the second diode main surface.

Diode laser assembly and method for assembling a diode laser assembly

A diode laser arrangement for the cooling of and supply of electrical current to diode laser devices, having at least two stacks, each having a diode laser device which is configured to emit a laser beam, an upper cooling device, and a lower cooling device. The diode laser device is arranged on the upper cooling device and on the lower cooling device such that the diode laser device is arranged between the upper cooling device and the lower cooling device. The upper and lower cooling devices are in each case electrically connected to the diode laser device arranged therebetween. The upper cooling device and/or the lower cooling device of a stack are in each case formed as a microchannel cooler. The upper cooling device and/or the lower cooling device of a stack in each case have substantially no electrical insulation with respect to the diode laser device arranged therebetween.

Diode laser assembly and DWM module having a diode laser assembly of this type

A device for wavelength coupling of laser beams () with different wavelengths (&#x3bb;, . . . &#x3bb;), comprising: at least one laser source for generating a plurality of laser beams (), and an overlapping device for spatial overlapping of the plurality of laser beams () for forming an overlapped laser beam with a plurality of wavelengths (&#x3bb;. . . &#x3bb;). The device has a feedback device arranged between the laser source and the overlapping device for feeding a radiation proportion of the laser beams () to be overlapped back to the laser source, the feedback device comprising a partially reflecting angle-dispersive optical element, in particular a partially reflecting diffraction grating. The overlapping device may, for example, be configured as a transmitting or reflecting diffraction grating whose optical properties are adapted to the optical properties of the partially reflecting diffraction grating to overlap the laser beams () in an essentially dispersion-free manner.

Device for wavelength combining of laser beams

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Berlin, Germany

Stephan Strohmaier