公开(公告)号：US20170279246A1

公开(公告)日：2017-09-28

申请号：US15510870

申请日：2015-10-08

Applicant: Lumentum Operations LLC ,  AMADA HOLDINGS COMPANY LTD.

Inventor： Martin H. MUENDEL ,  Justin L. FRANKE ,  Joseph J. ALONIS ,  Kaori USUDA ,  Minoru OGATA

IPC: H01S5/0683 ,  H01S5/042 ,  H01S5/40

CPC classification number: H01S5/0427 ,  B23K26/0608 ,  B23K26/0613 ,  B23K26/064 ,  B23K26/0876 ,  B23K26/362 ,  B23K26/38 ,  B23K26/702 ,  B23K26/703 ,  H01S3/131 ,  H01S5/005 ,  H01S5/0071 ,  H01S5/02252 ,  H01S5/02423 ,  H01S5/042 ,  H01S5/0617 ,  H01S5/0683 ,  H01S5/141 ,  H01S5/4012 ,  H01S5/4018 ,  H01S5/4025 ,  H01S5/4062 ,  H01S5/4087

Abstract: A power control method for a laser system comprising laser diodes arranged in diode banks is provided. Each diode bank comprises at least one of the laser diodes and has a maximum power. The method comprises operating a first diode bank of the diode banks to output a first power; and concurrently operating other of the diode banks to output other powers, at least one of the other powers being different than the first power.

公开(公告)号：US20170279245A1

公开(公告)日：2017-09-28

申请号：US15504820

申请日：2015-10-13

Applicant: AMADA HOLDINGS CO., LTD. ,  LUMENTUM OPERATIONS LLC

Inventor： Kaori USUDA ,  Minoru OGATA

IPC: H01S5/042 ,  H01S5/00 ,  B23K26/70 ,  H01S5/40

CPC classification number: H01S5/0427 ,  B23K26/00 ,  B23K26/702 ,  H01S3/131 ,  H01S5/005 ,  H01S5/0071 ,  H01S5/02252 ,  H01S5/02423 ,  H01S5/042 ,  H01S5/0617 ,  H01S5/0683 ,  H01S5/141 ,  H01S5/4012 ,  H01S5/4018 ,  H01S5/4025 ,  H01S5/4062 ,  H01S5/4087

Abstract: A semiconductor laser oscillator includes a diode unit configured from a plurality of banks, in which one bank is configured from a plurality of laser diodes connected in series. The diode unit includes a wavelength locking mechanism for locking to a plurality of wavelengths. The semiconductor laser oscillator includes a controller configured to control input currents to the laser diodes of each of the plurality of banks individually in correspondence to a characteristic of a wavelength locking efficiency, and to control an output of the diode unit as a whole to a required output.

公开(公告)号：US20170304942A1

公开(公告)日：2017-10-26

申请号：US15516951

申请日：2015-10-13

Applicant: AMADA HOLDINGS CO., LTD. ,  LUMENTUM OPERATIONS LLC

Inventor： Minoru OGATA

IPC: B23K26/06 ,  H01S5/00 ,  H01S5/022 ,  H01S5/40

CPC classification number: B23K26/0626 ,  B23K26/00 ,  H01S5/0021 ,  H01S5/005 ,  H01S5/02284 ,  H01S5/06825 ,  H01S5/0683 ,  H01S5/4012 ,  H01S5/4087

Abstract: A direct diode laser processing apparatus includes a laser oscillator including a plurality of laser diodes and emitting a multiple-wavelength laser beam, a transmission fiber transmitting the multiple-wavelength laser beam emitted from the laser oscillator, a laser processing machine collecting the multiple-wavelength laser beam transmitted through the transmission fiber and processes a workpiece, a detecting mechanism sampling part of the multiple-wavelength laser beam and detecting wavelength-by-wavelength light intensities of the sampled laser beam, a monitoring unit monitoring an output decrease in the multiple-wavelength laser beam according to a change in the wavelength-by-wavelength light intensities, and a control module controlling outputs of the plurality of laser diodes according to a monitored result from the monitoring unit. The apparatus properly monitors an output decrease in the multiple-wavelength laser beam.