公开(公告)号：US20220200236A1

公开(公告)日：2022-06-23

申请号：US17604766

申请日：2020-05-25

Applicant: Mitsubishi Electric Corporation

Inventor： Yoshimichi SAITO ,  Shuji WAKAIKI ,  Hiroshi IKARASHI ,  Shingo TSUDA ,  Hideyasu MACHII ,  Masato MATSUBARA

IPC: H01S5/068 ,  H01S5/40 ,  H01S5/042

Abstract: A laser beam generation device includes power supply units, LD modules, a combiner, and a control device. The LD modules receive currents from the power supply units, and output laser beams. The combiner collects the laser beams and outputs one laser beam. The control device generates control signals such that power of the laser beam becomes a laser output setting value and such that the currents become current command values. Phases of pulses of the control signals are shifted from each other by 60 degrees.