Trumpf Laser Gmbh

Trumpf Laser Gmbh & Co. Kg

Trumpf Werkzeugmaschinen Gmbh + Co. Kg

Trumpf Laser Se

Stefan Fuchs

Rudolf Huber

Dominik Maier

Alexander Killi

Dominik Bauer

Julian Hellstern

Jens Braun

Carsten Krenz

Michael Scharun

Manuel Schindler

Stefan Baumbach

Bernd Armbruster

Helge Höck

Peter Olschowsky

Marius Hezel

Ulrich Bonna

Maike Proßotowicz

Wolfgang Naue

Björn Gutoehrlein

An optical cable includes an optical fiber having a fiber core and a fiber cladding, and an output coupling plug at an output coupling-side fiber end of the optical fiber. The output coupling plug comprises at least one cladding light sensor arranged behind the output coupling-side fiber end and configured to measure cladding light that exits frontally from the fiber cladding at the output coupling-side fiber end.

Optical cable with a cladding light sensor and associated adjustment, test and monitoring apparatuses

Methods, devices, and systems for welding optical fibers and perforated elements by pulsed laser beam are provided. In one aspect, a method includes focusing a pulsed laser beam onto a region of a joining surface formed by an outer circumference of an optical fiber and an inner circumference of a hole of a perforated element, a beam direction of the pulsed laser beam running in an axial direction of the joining surface, and moving a laser focus of the pulsed laser beam in the region axially in or counter to the beam direction to produce at least one weld seam in the region. The optical fiber and the perforated element are locally melted in the region by the pulsed laser beam focused into a material of the optical fiber and a material of the perforated element and are thereby welded to one another.

Laser welding of optical fibers in perforated elements and associated optical elements

An apparatus for coupling out radiation from an optical fiber, includes a housing, and a stop having a stop opening for delimiting an output coupling angle of radiation that is coupled out of an output end of the optical fiber to a maximum output coupling angle with respect to a central axis of the stop opening, wherein the stop is arranged in the housing. The stop has a stop body made from a transparent material, the stop body has a first total internal reflection face for reflecting radiation that is coupled out of the output end of the optical fiber with greater output coupling angles than the maximum output coupling angle, and the stop body has a second total internal reflection face for reflecting radiation that propagates opposite to the radiation coupled out of the output end and is reflected back by a workpiece.

Apparatuses for coupling radiation out of an optical fiber

An optical fiber for transmitting laser beams includes at least one fiber core, at least one fiber jacket, a sheath encompassing the fiber jacket, an interlayer between the fiber jacket and the sheath, in which the refractive index of the interlayer is lower than a refractive index of the corresponding fiber jacket that is in contact with the interlayer, and an outputting means for outputting leakage radiation from the fiber.

Optical transport fibre and method for producing same

The invention relates to a device for adjusting a beam profile of a laser beam, which is guided in a light guide of a fiber optic cable provided with a protective sleeve, wherein the device comprises a deformation device for deforming the light guide in a section of the fiber optic cable not enclosed by the protective sleeve, a housing, which is designed to surround the light guide at least in the section not enclosed by the protective sleeve, and also two holders provided at opposite ends of the housing for fixing in each case one end of a section of the protective sleeve, wherein the holders each comprise an opening for feeding the light guide to the deformation device. The invention also relates to a laser processing machine having such a device and to an associated production method.

Device for adjusting a beam profile, laser processing machine and method for producing the device

An optical fiber connector includes a sleeve having a first end surface, an abutment having a second end surface, the abutment being located within the sleeve and axially movable within the sleeve, and at least three balls located between the first end surface and the second end surface within the sleeve for clamping an optical fiber, the balls having centers disposed in a plane and being axially and radially displaceable in the sleeve and biased radially inwardly toward a central axis of the sleeve. At least one of the first end surface and the second end surface includes a conical surface.

Optical fiber connector arrangement

Growing community of inventors

Boehringen, Germany

Stefan Fuchs