Patent ID: 7822079
Filing Date: 2010-10-26
Classification: B23K

Abstract:
1. A laser beam processing apparatus comprising: a fiber laser oscillator, having an optical fiber configuration including a core containing an emission element as an active medium, for oscillating and outputting a raw laser beam having a predetermined wavelength by exciting the core using a predetermined excitation beam; a laser beam branching unit for branching the raw laser beam created by the fiber laser oscillator into a plurality of branched laser beams non-simultaneously, the laser beam branching unit comprising: a plurality of optical fibers for transmitting the branched laser beams, respectively, to a common remote laser processing site or different remote laser processing sites, respectively; a plurality of a laser beam injecting units for injecting the branched laser beams obtained from the laser beam branching unit into an end face of the plural optical fibers, respectively; and a laser beam irradiating unit that condenses and applies each branched laser beam exiting from another end face of each of the plural optical fibers onto a processing point set on a common work to be processed or onto different respective processing points on different works to be processed.