High power laser beam shaping for welding applications by means of diffractive elements

Yannick Bourgin; Falk Nagel; Patrick Feßer; Jean-Pierre Bergmann; Stefan Sinzinger

doi:10.1117/12.2320579

14 September 2018 High power laser beam shaping for welding applications by means of diffractive elements

Yannick Bourgin, Falk Nagel, Patrick Feßer, Jean-Pierre Bergmann, Stefan Sinzinger

Author Affiliations +

Proceedings Volume 10744, Laser Beam Shaping XVIII; 107440X (2018) https://doi.org/10.1117/12.2320579
Event: SPIE Optical Engineering + Applications, 2018, San Diego, California, United States

Abstract

Laser welding by means of multi-kilowatt solid state lasers can be considerably improved if the focused welding spot is embedded in a pre-heating spot generated e.g. by an additional laser. To improve the compactness of the optical system, the same functionality can be effectively achieved by means of diffractive diffusers. Because such a diffractive optical solution may suffer from the presence of speckles, a comprehensive characterization of the laser source is performed. The paper includes the design, the compensation of the difference in the intensity levels, the fabrication and the optical performances of the fabricated DOEs. We furthermore present the functionality of the DOEs in the welding process.

Conference Presentation

Citation Download Citation

Yannick Bourgin, Falk Nagel, Patrick Feßer, Jean-Pierre Bergmann, and Stefan Sinzinger "High power laser beam shaping for welding applications by means of diffractive elements", Proc. SPIE 10744, Laser Beam Shaping XVIII, 107440X (14 September 2018); https://doi.org/10.1117/12.2320579

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

;

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE