Hollow-core-fiber laser-light-cable on TruMicro Series 2000 for easy system integration

摘要

We report on TRUMPF′s industrialized hollow-core-fiber laser-light-cable coupled to the TruMicro ultrafast laserplatform. A flexible connection between processing head and laser source offers new opportunities in the design ofcompact laser processing machines. The compact, light-weight connector at the end of the delivery fiber provides a welldefinedoptical interface close to the processing optics, and spatially eases integration of any laser to the machine,enabling optimum access for fast system maintenance without any need for re-alignments. Constant optical beamparameters are ensured even during dynamical movement of the laser-light-cable and the processing head. TRUMPFoffers a complete in-house solution consisting of the ultrafast laser platform with up to 10 m long hollow-core-fiberlaser-light-cables. The system further includes monitoring devices, e.g. for mode field and power, fiber protection and asafety circuit.As an application example of this compact laser system we present further progress on glass welding. Ultrashort laserpulses enable local bulk modifications in glass as well as controlled melting via heat accumulation. Improved glasswelding using optimized energy modulation of successive laser pulses from our advanced TruMicro Series 2000platform are discussed. The approach for joining brittle materials provides long-term stable and gas-tight joints.