Advancements in high-power high-brightness laser bars and single emitters for pumping and direct diode application

Haiyan An; Ching-Long John Jiang; Yihan Xiong; Qiang Zhang; Aloysius Inyang; Jason Felder; Alexander Lewin; Robert Roff; Stefan Heinemann; Berthold Schmidt; Georg Treusch

doi:10.1117/12.2080175

13 March 2015 Advancements in high-power high-brightness laser bars and single emitters for pumping and direct diode application

Haiyan An, Ching-Long John Jiang, Yihan Xiong, Qiang Zhang, Aloysius Inyang, Jason Felder, Alexander Lewin, Robert Roff, Stefan Heinemann, Berthold Schmidt, Georg Treusch

Author Affiliations +

Proceedings Volume 9348, High-Power Diode Laser Technology and Applications XIII; 93480I (2015) https://doi.org/10.1117/12.2080175
Event: SPIE LASE, 2015, San Francisco, California, United States

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.

Citation Download Citation

Haiyan An, Ching-Long John Jiang, Yihan Xiong, Qiang Zhang, Aloysius Inyang, Jason Felder, Alexander Lewin, Robert Roff, Stefan Heinemann, Berthold Schmidt, and Georg Treusch "Advancements in high-power high-brightness laser bars and single emitters for pumping and direct diode application", Proc. SPIE 9348, High-Power Diode Laser Technology and Applications XIII, 93480I (13 March 2015); https://doi.org/10.1117/12.2080175

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