Patent · US Active

Determining the degradation and/or efficiency of laser modules

US8831053B2 · kind B2 · utility

0Cited by

6References

7Claims

0Family size

Assignee

TRUMPF Laser GmbH + Co. KG · DE

Inventors

Rainer Flaig · Eschbronn, DE
Alexander Killi · Trossingen, DE
Martin Liermann · Villingen-Schwenningen, DE
Thomas Notheis · Schramberg, DE

Key dates

Filing date	Jul 21, 2011
Grant date	Sep 9, 2014
Priority date	—
Expiry date	Jul 21, 2031

Classification

Technology area (CPC H)Electricity
CPC primaryH01S5/4018
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A method for monitoring a laser system including a plurality of laser modules connected in series, there being connected in parallel to each laser module a bypass arrangement for bridging the corresponding laser module, includes determining a first laser power of the laser system with a plurality of laser modules operational; activating the bypass arrangement of at least one laser module so that at least one of the plurality of laser modules is bypassed; determining a second laser power of the laser system with the at least one of the plurality of laser modules bypassed; and monitoring the laser system based on a difference between the first and second laser power.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.