Trumpf Laser Gmbh

Trumpf Laser Gmbh & Co. Kg

Thomas Rataj

Andreas Voss

Laser machining system () comprises a high-power laser () for generating a high-power pump laser beam (HP-MM), control signal laser () for generating a control signal laser beam (SS), an optical fiber () leading from the two lasers to a laser machining head (). The optical fiber has an SRS amplifier fiber () with an inner fiber core () of higher brilliance and with an outer fiber core () of lower brilliance surrounding the inner fiber core. The control signal laser beam (SS) is coupled into the inner fiber core and the pump laser beam (HP-MM) is coupled into the outer fiber core. The radiation component converted from the outer fiber core into the inner fiber core due to the SRS amplification is adjusted by means of the coupled-in power of the control signal laser beam (SS) to adjust the brilliance of the machining laser beam leaving the SRS amplifier fiber.

Laser machining system having a machining laser beam that is adjustable in terms of its brilliance

An optical beam switch includes at least one input optical wave guide, multiple output optical wave guides and an optical switching element for selectively switching a light beam guided in the at least one input optical wave guide to one of the output optical wave guides, in which the switching element is between the at least one input optical waveguide and the multiple output optical waveguides. The optical switching element includes a beam propagation element and an optical focusing system, where the beam propagation element has two mutually opposed end faces and where either the beam propagation element or the optical focusing system can be deflected and/or twisted transversely to an optical axis. The at least one input optical wave guide is attached to a first end face of the beam propagation element, and the output optical wave guides are attached to a second end face.

Growing community of inventors

Oberönz, Switzerland

Thomas Rataj