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.