Individually addressed high-power diode-laser-bars for material processing

Author

Roehner, M. ; Boenig, N. ; Boucke, K. ; Poprawe, R.

Author_Institution

Fraunhofer-Inst. fur Lasertechnik, Aachen, Germany

fYear

2003

fDate

22-27 June 2003

Firstpage

160

Abstract

In order to widen the applications of high-power diode-laser-bars in the fields of micro-system technology and printing industry (e.g. soldering electronic components or rapid-prototyping) the intensity profile must be adjusted to the work piece´s respective geometry. In this presentation an estimation of the thermal and electrical crosstalk for different geometries of high-power diode-laser-bars is discussed. Different methods to increase the fill factor are shown. At the conclusion three prototypes with 19 up to 48 individually addressable high-power diode-laser-bars used in the field of micro-system technology and printing industry are presented.

Keywords

laser materials processing; micro-optics; semiconductor lasers; soldering; electrical crosstalk estimation; electronic component soldering; high-power diode-laser-bar; material processing; micro-system technology; printing industry; rapid-prototyping; thermal crosstalk estimation; Crosstalk; Diodes; Electronic components; Electronics industry; Geometry; Materials processing; Printing; Prototypes; Rapid thermal processing; Soldering;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics Europe, 2003. CLEO/Europe. 2003 Conference on

Print_ISBN

0-7803-7734-6

Type

conf

DOI

10.1109/CLEOE.2003.1312221

Filename

1312221