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1 April 2022 Advances in blue high-power/high-brightness direct diode lasers using wavelength beam combining
Bien Chann, Francisco J. Villarreal, Wang-Long Zhou, John Roethle, Abraham Wong-Guiterrez, Matthew Sauter, Christopher Halle, Shinya Domoto, Bryan Lochman
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Proceedings Volume PC11983, High-Power Diode Laser Technology XX; PC1198307 (2022) https://doi.org/10.1117/12.2611220
Event: SPIE LASE, 2022, San Francisco, California, United States
Abstract
Blue High-Power/High-Brightness Direct Diode Lasers are rapidly evolving as one of the preferred laser technologies for processing highly reflective materials. This paper focuses on the recent advances applying Wavelength Beam Combining (WBC) technology to diode bars emitting in the 445nm region to demonstrate the power scalability with high beam qualities only achievable using WBC technology. We’ll present our latest developments including 400W Blue lasers coupled with fiber diameters ≤50um. We will also show results of combining multiple laser modules to scale powers to multi-KW levels with fiber diameters ≤ 100um. Finally, we will discuss the future of this technology.
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Bien Chann, Francisco J. Villarreal, Wang-Long Zhou, John Roethle, Abraham Wong-Guiterrez, Matthew Sauter, Christopher Halle, Shinya Domoto, and Bryan Lochman "Advances in blue high-power/high-brightness direct diode lasers using wavelength beam combining", Proc. SPIE PC11983, High-Power Diode Laser Technology XX, PC1198307 (1 April 2022); https://doi.org/10.1117/12.2611220
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KEYWORDS
Semiconductor lasers
Copper
Fiber coupled lasers
Fiber lasers
Laser applications
Fiber couplers
Laser processing
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