Patent ID: 6157755
Filing Date: 2000-12-05
Classification: G02B,H01S

Abstract:
A laser system comprising a fiber bundle consisting of single mode fibers each having a first end, said first ends together forming a fiber bundle end from which a total radiation field formed from laser radiation exiting from the first ends of the fibers can exit, said total radiation field being adapted to be imaged onto a target surface, and each of said single mode fibers being coupled via a second end thereof to a respective subsystem adapted to generate the laser radiation, wherein:each subsystem comprises a plurality of semiconductor lasers operating in parallel,within each subsystem, all of the semiconductor lasers operate with the same wavelength in a phase-balanced manner in relation to one another as a result of master laser radiation coupled into them, said master laser radiation being adapted to be coupled into the semiconductor lasers through an output side thereof, andindividual laser radiation exiting from the individual semiconductor lasers of each subsystem is combinable, by means of a coupling device of that subsystem, to form a coherent laser radiation field adapted to be coupled into the single mode fiber associated with the respective subsystem.