Journal of Thermal Analysis and Calorimetry
Volume/Issue:
Volume 45: Issue 3
Analysis of thermal behaviour of high power semiconductor laser arrays by means of the finite element method ( FEM )
Authors:
A. BärwolffMax-Born-Institut für Nichtlineare Optik und Kurzzeitspektroskopie Rudower Chaussee 6 D-12489 Berlin Germany

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R. PuchertMax-Born-Institut für Nichtlineare Optik und Kurzzeitspektroskopie Rudower Chaussee 6 D-12489 Berlin Germany

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P. EndersMax-Born-Institut für Nichtlineare Optik und Kurzzeitspektroskopie Rudower Chaussee 6 D-12489 Berlin Germany

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U. MenzelMax-Born-Institut für Nichtlineare Optik und Kurzzeitspektroskopie Rudower Chaussee 6 D-12489 Berlin Germany

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D. AckermannMax-Born-Institut für Nichtlineare Optik und Kurzzeitspektroskopie Rudower Chaussee 6 D-12489 Berlin Germany

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Pages:
417–436
Online Publication Date:
09 Jan 2007
Publication Date:
01 Sep 1995
Article Category:
Research Article
DOI:
https://doi.org/10.1007/bf02548775
Keywords:
finite element method ( FEM ); semiconductor
Restricted access

Abstract  

New results of steady-state two-dimensional finite-element computations of temperature distributions of high power semiconductor laser arrays are presented. The influence of different thermal loads on the 2D temperature distribution in AlGaAs/GaAs gain-guided laser arrays is investigated. TheFEM model is tested by comparing it with analytical solutions. For numerical convenience, the latter is rewritten in a novel form, which is free of overflow problems. The maximum temperatures calculated by both methods agree within 1%. Several factors determining the thermal resistance of the device are quantitatively examined: the ratio of light emitting to non-emitting areas along the active zone, the amount of Joule losses, the current spreading, the solder thickness, and voids in the solder. This yields design rules for optimum thermal performance.

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Cover Journal of Thermal Analysis and Calorimetry
Journal of Thermal Analysis and Calorimetry
Print ISSN:
1388-6150
Online ISSN:
1572-8943

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Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation		 1969
Volumes
per Year		 1
Issues
per Year		 24
Founder Akadémiai Kiadó
Founder's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher		 Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

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