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：US20190221991A1

公开(公告)日：2019-07-18

申请号：US16161902

申请日：2018-10-16

Applicant: Lumentum Operations LLC

Inventor： Tobyn VANVEGHTEN ,  Joseph J. ALONIS ,  James J. MOREHEAD ,  Loren A. EYRES

IPC: H01S3/11 ,  H01S3/094 ,  H01L25/16 ,  H01L27/146 ,  G01J11/00

CPC classification number: H01S3/1127 ,  G01J11/00 ,  H01L25/167 ,  H01L27/14643 ,  H01S3/094076

Abstract: A device may determine at least one metric related to a plurality of laser pulses associated with a Q-switched laser. The device may determine a statistical metric for the at least one metric related to the plurality of laser pulses. The device may determine that the statistical metric satisfies a threshold level of deviation of the at least one metric related to the plurality of laser pulses from a baseline value for the at least one metric. The device may indicate laser degradation of the Q-switched laser based on determining that the statistical metric satisfies the threshold.