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Proceedings Paper

Advancements in high-power high-brightness laser bars and single emitters for pumping and direct diode application
Author(s): Haiyan An; Ching-Long John Jiang; Yihan Xiong; Qiang Zhang; Aloysius Inyang; Jason Felder; Alexander Lewin; Robert Roff; Stefan Heinemann; Berthold Schmidt; Georg Treusch
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Paper Abstract

We have continuously optimized high fill factor bar and packaging design to increase power and efficiency for thin disc laser system pump application. On the other hand, low fill factor bars packaged on the same direct copper bonded (DCB) cooling platform are used to build multi-kilowatt direct diode laser systems. We have also optimized the single emitter designs for fiber laser pump applications. In this paper, we will give an overview of our recent advances in high power high brightness laser bars and single emitters for pumping and direct diode application. We will present 300W bar development results for our next generation thin disk laser pump source. We will also show recent improvements on slow axis beam quality of low fill factor bar and its application on performance improvement of 4-5 kW TruDiode laser system with BPP of 30 mm*mrad from a 600 μm fiber. Performance and reliability results of single emitter for multiemitter fiber laser pump source will be presented as well.

Paper Details

Date Published: 13 March 2015
PDF: 6 pages
Proc. SPIE 9348, High-Power Diode Laser Technology and Applications XIII, 93480I (13 March 2015); doi: 10.1117/12.2080175
Show Author Affiliations
Haiyan An, TRUMPF Photonics (United States)
Ching-Long John Jiang, TRUMPF Photonics (United States)
Yihan Xiong, TRUMPF Photonics (United States)
Qiang Zhang, TRUMPF Photonics (United States)
Aloysius Inyang, TRUMPF Photonics (United States)
Jason Felder, TRUMPF Photonics (United States)
Alexander Lewin, TRUMPF Photonics (United States)
Robert Roff, TRUMPF Photonics (United States)
Stefan Heinemann, TRUMPF Photonics (United States)
Berthold Schmidt, TRUMPF Laser Marking Systems AG (Switzerland)
Georg Treusch, TRUMPF Photonics (United States)

Published in SPIE Proceedings Vol. 9348:
High-Power Diode Laser Technology and Applications XIII
Mark S. Zediker, Editor(s)

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