High power high brightness laser source for material processing through incoherent beam combination

2007 ◽  
Author(s):  
Jie Xu ◽  
Shanghong Zhao ◽  
Shengbao Zhan ◽  
Rui Hou ◽  
Yongjun Li ◽  
...  
Keyword(s):  
Material Processing ◽  
High Power ◽  
Laser Source ◽  
High Brightness ◽  
Beam Combination

High brightness spectral beam combination of high-power vertical-external-cavity surface-emitting lasers

2006 ◽  
Vol 18 (17) ◽  
pp. 1795-1797 ◽  
Author(s):  
Y. Kaneda ◽  
Li Fan ◽  
Ta-Chen Hsu ◽  
N. Peyghambarian ◽  
M. Fallahi ◽  
...  
Keyword(s):  
High Power ◽  
External Cavity ◽  
Cavity Surface ◽  
High Brightness ◽  
Beam Combination ◽  
Surface Emitting Lasers ◽  
Emitting Lasers

Compact high-brightness and high-power diode laser source for materials processing

2000 ◽  
Author(s):  
Hans-Georg Treusch ◽  
Jim Harrison ◽  
Robert Morris ◽  
Jeff J. Powers ◽  
Dennis Brown ◽  
...  
Keyword(s):  
Diode Laser ◽  
High Power ◽  
Materials Processing ◽  
Laser Source ◽  
High Brightness ◽  
Power Diode ◽  
High Power Diode Laser

Beam Shaping Technology for High Power Diode Laser Source

2014 ◽  
Vol 915-916 ◽  
pp. 385-389
Author(s):  
Yuan Yuan Gu ◽  
Guo Xing Wu ◽  
Hui Lu ◽  
Jian Lin
Keyword(s):  
Conversion Efficiency ◽  
High Power ◽  
Beam Quality ◽  
Diode Lasers ◽  
Beam Shaping ◽  
Laser Source ◽  
Beam Parameter ◽  
Beam Combination ◽  
Continuous Output ◽  
Wall Plug Efficiency

Direct diode lasers have some of the most attractive features of any laser. They are very efficient, compact, wavelength versatile, low cost, and highly reliable. However, the full utilization of direct diode lasers has yet to be realized. This is mainly due their poor output beam quality. Because of this, direct diode lasers are typically used to pump other lasers such as bulk solid-state (rod and thin disk) and fiber lasers. An improvement of the wall-plug efficiency and Power density necessary can be achieved by beam shaping and beam combination such as polarization coupling. In this paper, using the beam shaping technology realize good beam quality and high wall-plug efficiency. Base on bars rated to 60 W and 57% conversion efficiency, vertically stacked arrays (twenty bars) of such configuration are demonstrated with rated to about 1200W. The beam quality of high-power high brightness 880 nm laser diode source is improved with beam shaping. Beam parameter product of 79. 3 mm mrad ×81. 2 mm mrad, electro-optical conversion efficiency of more than 45.8% and continuous output power of 1 kW are demonstrated. This laser can be directly applied to cladding, surface hardening and other fields.

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