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Proceedings Paper

Advances in blue and near-IR high-power/high-brightness direct diode lasers using wavelength beam combining (Conference Presentation)
Author(s): Francisco Villarreal; Wang Zhou; John Roethle; Matthew Sauter; Keita Inoue; Bryan Lochman; Bien Chann

Paper Abstract

Industrial High-Power/High-Brightness Direct Diode Laser (DDL) are rapidly evolving as one of the preferred laser technologies for metal processing with several benefits such as higher processing speeds, superior applications quality and wall plug efficiencies higher than 40%. This paper focuses on the recent advances applying Wavelength Beam Combining (WBC) technology to diode bars emitting in the 400nm region to demonstrate the power scalability with beam qualities only archivable using WBC technology. Also, will talk about the 6kW/100um laser in the 975nm region using the Fast-Beam-Shaper (FBS) capable of dynamically and continuously changing the shape of the beam in a couple of milliseconds to shape-modulate the output beam to closely match the application requirements. We will also show an approach for a 6kW/50um extended broadband laser in the 875-1000nm spectral region that doubles the brightness capabilities of DDL and enhance the metal processing quality.

Paper Details

Date Published: 9 March 2020
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Proc. SPIE 11262, High-Power Diode Laser Technology XVIII, 112620U (9 March 2020); doi: 10.1117/12.2544435
Show Author Affiliations
Francisco Villarreal, TeraDiode, Inc. (United States)
Wang Zhou, TeraDiode, Inc. (United States)
John Roethle, TeraDiode, Inc. (United States)
Matthew Sauter, TeraDiode, Inc. (United States)
Keita Inoue, TeraDiode, Inc. (United States)
Bryan Lochman, TeraDiode, Inc. (United States)
Bien Chann, TeraDiode, Inc. (United States)


Published in SPIE Proceedings Vol. 11262:
High-Power Diode Laser Technology XVIII
Mark S. Zediker, Editor(s)

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