COUPLING LASER BEAM SOURCE AND ALIGNER

摘要

PROBLEM TO BE SOLVED: To obtain an inexpensive multiplexing laser beam source by which high output is obtained. SOLUTION: Coupling is performed by condensing laser beams B1-7 which are respectively exited from a plurality of semiconductor laser LD1-7 with a condensing optical system consisting of, for example, collimator lenses 11-17 and a condensing lens 20 and further by being combined to a multimode optical fiber 30.