Industrial micromachining with advanced solid state lasers

J. Stollhof; S. Weiler; Chuong Tan; Ivo Zawischa; D. H. Sutter; J. Kleinbauer; M. Kumkar

doi:10.1117/12.700469

20 February 2007 Industrial micromachining with advanced solid state lasers

J. Stollhof, S. Weiler, Chuong Tan, Ivo Zawischa, D. H. Sutter, J. Kleinbauer, M. Kumkar

Proceedings Volume 6451, Solid State Lasers XVI: Technology and Devices; 64511J (2007) https://doi.org/10.1117/12.700469
Event: Lasers and Applications in Science and Engineering, 2007, San Jose, California, United States

Abstract

TRUMPF Laser has developed an advanced solid-state q-switched laser, designed specifically to meet the requirements of industrial micro-processing. Pulse energies exceeding 4 mJ, pulse durations adapted to the application and a diffraction limited beam (M² < 1.2) are essential for micro-machining. A novel feature of the laser ensures its particularly high performance and overall stability. The technical concept is based on a power oscillator, where the output power is not set by adjusting the pump power, but rather by precise switching and attenuation of the pulses outside of the resonator. This leads to a high stability and a fixed concentric beam profile, independent of the actual output power of the system. In the field of micro-processing, laser light is primarily used for the precise ablation of various materials. High intensities beyond 10¹¹ W/cm² enable the development of new laser processing strategies, e.g. sublimation-cutting and -drilling. High stability in terms of beam quality, beam location (pointing stability < 10 &mgr;rad) and pulse energy allows for both the improvement of well known laser processes as well as pushing forward new applications. Additionally, the repetition rate of up to several hundred kilohertz and the high average power emphasizes the high performance of the developed system, particularly with regard to the competition with alternative manufacturing strategies. Further potential to increase the precision and to minimize the heat affected zone (HAZ) is given by the application of ultrashort picosecond and femtosecond pulses. TRUMPF Laser has already demonstrated a CPA-free, diode-pumped all-solid-state laser, delivering picosecond pulses with an average power of 50 W.

Citation Download Citation

J. Stollhof, S. Weiler, Chuong Tan, Ivo Zawischa, D. H. Sutter, J. Kleinbauer, and M. Kumkar "Industrial micromachining with advanced solid state lasers", Proc. SPIE 6451, Solid State Lasers XVI: Technology and Devices, 64511J (20 February 2007); https://doi.org/10.1117/12.700469

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

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
8 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Laser cutting

Laser processing

Laser stabilization

Laser development

Laser applications

Picosecond phenomena

Solid state lasers

Show All Keywords

Keywords/Phrases

Search In:

Publication Years