Zeghuzi, Anissa
[Author];
Wünsche, Hans-Jürgen
[Author];
Wenzel, Hans
[Author];
Radziunas, Mindaugas
[Author];
Fuhrmann, Jürgen
[Author];
Klehr, Andreas
[Author];
Bandelow, Uwe
[Author];
Knigge, Andrea
[Author]
Time-dependent simulation of thermal lensing in high-power broad-area semiconductor lasers
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Media type:
Text;
Report;
E-Book
Title:
Time-dependent simulation of thermal lensing in high-power broad-area semiconductor lasers
Contributor:
Zeghuzi, Anissa
[Author];
Wünsche, Hans-Jürgen
[Author];
Wenzel, Hans
[Author];
Radziunas, Mindaugas
[Author];
Fuhrmann, Jürgen
[Author];
Klehr, Andreas
[Author];
Bandelow, Uwe
[Author];
Knigge, Andrea
[Author]
Published:
Weierstrass Institute for Applied Analysis and Stochastics publication server, 2019
Footnote:
Diese Datenquelle enthält auch Bestandsnachweise, die nicht zu einem Volltext führen.
Description:
We propose a physically realistic and yet numerically applicable thermal model to account for short and long term self-heating within broad-area lasers. Although the temperature increase is small under pulsed operation, a waveguide that is formed within a few-ns-long pulse can result in a transition from a gain-guided to an index-guided structure, leading to near and far field narrowing. Under continuous wave operation the longitudinally varying temperature profile is obtained self-consistently. The resulting unfavorable narrowing of the near field can be successfully counteracted by etching trenches.