公开(公告)号：US20230420914A1

公开(公告)日：2023-12-28

申请号：US17808310

申请日：2022-06-23

Applicant: Endress+Hauser Optical Analysis, Inc.

Inventor： Timothy Norwood

IPC: H01S5/068 ,  H01S5/026

CPC classification number: H01S5/06808 ,  H01S5/0262

Abstract: The present disclosure includes a method for driving a laser system, wherein the laser system includes: at least one laser diode arranged for light emission; an electronic circuit configured for driving the laser diode by applying an electric drive current; and a power sensor arrangement including at least one power sensor for measuring an optical power output, wherein the method includes: applying and maintaining the electric drive current to the at least one laser diode at a setpoint; determining measurement values of a current optical power output by the power sensor arrangement; comparing the measurement values of the current optical power output with a target optical power output; and adjusting and maintaining the electric drive current at a new setpoint when an absolute value of a difference between the target optical power output and the current optical power output crosses a threshold.