LASER OSCILLATOR, LASER MACHINING DEVICE IN WHICH SAME IS USED, AND LASER OSCILLATION METHOD

A laser oscillator includes a plurality of laser modules, beam coupler (12) that couples a plurality of laser beams (LB1 to LB4) emitted from the plurality of laser modules to form a coupled laser beam, beam coupler (12) emitting the coupled laser beam, and a condensing lens unit having a condensing...

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Bibliographische Detailangaben
Hauptverfasser:	ISHIKAWA Ryo, KATO Naoya, DOMOTO Shinya
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CLADDING OR PLATING BY SOLDERING OR WELDING CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS SOLDERING OR UNSOLDERING TRANSPORTING WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	A laser oscillator includes a plurality of laser modules, beam coupler (12) that couples a plurality of laser beams (LB1 to LB4) emitted from the plurality of laser modules to form a coupled laser beam, beam coupler (12) emitting the coupled laser beam, and a condensing lens unit having a condensing lens, the condensing lens unit condensing the coupled laser beam to have a given beam diameter and guiding the condensed coupled laser beam to a transmission fiber. Beam coupler (12) has optical members (OC1 to OC4) configured to change optical paths of laser beams (LB1 to LB4). By changing the optical paths of laser beams (LB1 to LB4) by optical members (OC1 to OC4,) a beam profile of the coupled laser beam emitted from the transmission fiber is changed without adjusting a position of the condensing lens.