Trumpf Laser Gmbh & Co. Kg

Lutz Schuler

Thomas Notheis

Sven Schad

Jürgen Döttling

Jürgen Mösner

In a laser device having at least one gas-purged laser resonator which is arranged in a purging gas circuit which has upstream of the laser resonator both a low pressure generator for generating a purging gas excess pressure in the purging gas circuit and, between the low pressure generator and the laser resonator, a cleaning device for cleaning the purging gas, the purging gas being air, according to the invention the purging gas circuit has downstream of the laser resonator between the laser resonator and the low pressure generator an intake opening which is permanently open towards the atmosphere, the purging gas pressure (p) generated by the low pressure generator being greater than the atmospheric air pressure (p).

Laser device having a gas-purged laser resonator

A device couples a laser beam into a laser light cable having a cable connection for the laser light cable. The device includes a safety element that is operable to move to a safety position only when the laser light cable is properly connected to the cable connection. The coupling device includes an optical arrangement that is controlled by the safety element, and is disposed in the beam path of the laser beam upstream of the cable connection and only directs the laser beam towards the cable connection when the safety element is in the safety position.

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Bad Durrheim, Germany

Lutz Schuler