Addressable high power VCSEL array system for printing applications

Rolf Apetz; Ralf Conrads; Stephan Gronenborn; Jens Pollmann-Retsch; Carsten Deppe; Holger Moench; Armand Pruijmboom; Thomas Mattes

doi:10.1117/12.2619506

1 April 2022 Addressable high power VCSEL array system for printing applications

Rolf Apetz, Ralf Conrads, Stephan Gronenborn, Jens Pollmann-Retsch, Carsten Deppe, Holger Moench, Armand Pruijmboom, Thomas Mattes

Author Affiliations +

Proceedings Volume PC11983, High-Power Diode Laser Technology XX; PC1198301 (2022) https://doi.org/10.1117/12.2619506
Event: SPIE LASE, 2022, San Francisco, California, United States

Abstract

We present a new concept for pixelated heating with high spatial resolution (~ 100 um) and high power densities (~ 10^4 W/cm^2), using high-power VCSEL arrays. Based on this concept, we developed a laser system with 3456 individually addressable pixels, with a total maximum output power of ~ 6 kW. Together with our partner EOS we integrated this system into a new generation of polymer 3D printing machines. Functional polymer parts of very high quality could be demonstrated. Due to the high parallelism and the high power, the production speed could be increased by about 10x compared to the best conventional SLS machines with scanning lasers.

Conference Presentation

Citation Download Citation

Rolf Apetz, Ralf Conrads, Stephan Gronenborn, Jens Pollmann-Retsch, Carsten Deppe, Holger Moench, Armand Pruijmboom, and Thomas Mattes "Addressable high power VCSEL array system for printing applications", Proc. SPIE PC11983, High-Power Diode Laser Technology XX, PC1198301 (1 April 2022); https://doi.org/10.1117/12.2619506

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

Includes PDF, HTML & Video, when available