Micro-optics packaging and integration for high-power diode laser beam combining

2011 ◽  
Author(s):  
Y. G. Soskind
Keyword(s):  
Laser Beam ◽  
Diode Laser ◽  
High Power ◽  
Beam Combining ◽  
Diode Laser Beam ◽  
Micro Optics ◽  
Power Diode ◽  
High Power Diode Laser

High power diode laser source with a transmission grating for two spectral beam combining

Optik ◽  
2019 ◽  
Vol 192 ◽  
pp. 162918 ◽  
Author(s):  
Jingyu Tian ◽  
Jun Zhang ◽  
Hangyu Peng ◽  
Yuxin Lei ◽  
Li Qin ◽  
...  
Keyword(s):  
Diode Laser ◽  
High Power ◽  
Laser Source ◽  
Transmission Grating ◽  
Beam Combining ◽  
Spectral Beam Combining ◽  
Power Diode ◽  
High Power Diode Laser

High precision automated tab assembly with micro optics for optimized high-power diode laser collimation

2020 ◽  
Author(s):  
Martin Forrer ◽  
Helen Strub ◽  
Tobias Honig ◽  
Nicole Koller ◽  
Andreas Kunz ◽  
...  
Keyword(s):  
Diode Laser ◽  
High Precision ◽  
High Power ◽  
Micro Optics ◽  
Power Diode ◽  
High Power Diode Laser

Study of Residual Stress Surface Distribution on Laser Welded Steel Sheets

2013 ◽  
Vol 486 ◽  
pp. 3-8 ◽  
Author(s):  
Zdenek Pala ◽  
Kamil Kolařík ◽  
Nikolaj Ganev ◽  
Jiří Čapek
Keyword(s):  
Residual Stresses ◽  
Laser Beam ◽  
Laser Welding ◽  
Diode Laser ◽  
High Power ◽  
The Body ◽  
Laser Weld ◽  
Steel Sheets ◽  
Power Diode ◽  
High Power Diode Laser

Advent of high power diode laser has substantially contributed to the popularity of laser welding in industry where its virtues such as low heat input and good weld strength are highly appreciated. However, one of the drawbacks of the laser welding is distortion of the welded bodies that is closely linked with the generation and/or redistribution of residual stresses in the vicinity of the weld. In this contribution, mapping of surface macroscopic residual stresses in two directions, i.e. parallel and perpendicular to the welds, were performed for two bodies. The first contained a weld created with the high power diode laser beam speed of 2 m/min and the second with the speed of 15 m/min. Our aim was to compare not only resulting fields of residual stresses, but also to perform qualitative assessment of the possible presence of crystallographic texture and gain a qualitative apprehension about the grain sizes in the vicinity of a laser weld joining two steel sheets. Larger distortion of the body with a laser weld is exhibited by the sample manufactured with approximately 8 times bigger speed of laser beam. This sample is in the immediate vicinity characterized by substantial compressive residual stresses in the direction perpendicular to the weld.

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