3 April 2000 Kilowatt average-power laser for subpicosecond materials processing
Author Affiliations +
Proceedings Volume 3889, Advanced High-Power Lasers; (2000) https://doi.org/10.1117/12.380898
Event: Advanced High-Power Lasers and Applications, 1999, Osaka, Japan
Abstract
The performance of laser pulses in the sub-picosecond range for materials processing is substantially enhanced over similar fluences delivered in longer pulses. Recent advances in the development of solid state lasers have progressed significantly toward the higher average powers potentially useful for many applications. Nonetheless, prospects remain distant for multi-kilowatt sub-picosecond solid state systems such as would be required for industrial scale surface processing of metals and polymers. We present operation results from the world's first kilowatt scale ultra-fast materials processing laser. A Free Electron Laser (FEL) called the IR Demo is operational as a User Facility at Thomas Jefferson National Accelerator Facility in Newport News, Virginia, USA. In its initial operation at high average power it is capable of wavelengths in the 2 to 6 micron range and can produce approximately 0.7 ps pulses in a continuous train at approximately 75 MHz. This pulse length has been shown to be nearly optimal for deposition of energy in materials at the surface. Upgrades in the near future will extend operation beyond 10 kW CW average power in the near IR and kilowatt levels of power at wavelengths from 0.3 to 60 microns. This paper will cover the design and performance of this groundbreaking laser and operational aspects of the User Facility.
© (2000) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Stephen V. Benson, Stephen V. Benson, George R. Neil, George R. Neil, Courtlandt L. Bohn, Courtlandt L. Bohn, George Biallas, George Biallas, David Douglas, David Douglas, H. Frederick Dylla, H. Frederick Dylla, Jock Fugitt, Jock Fugitt, Kevin Jordan, Kevin Jordan, Geoffrey Krafft, Geoffrey Krafft, Lia Merminga, Lia Merminga, Joe Preble, Joe Preble, Michelle D. Shinn, Michelle D. Shinn, Tim Siggins, Tim Siggins, Richard Walker, Richard Walker, Byung Yunn, Byung Yunn, } "Kilowatt average-power laser for subpicosecond materials processing", Proc. SPIE 3889, Advanced High-Power Lasers, (3 April 2000); doi: 10.1117/12.380898; https://doi.org/10.1117/12.380898
PROCEEDINGS
6 PAGES


SHARE
RELATED CONTENT

Free-electron lasers as light sources for basic research
Proceedings of SPIE (September 30 1991)
A Versatile Excimer Laser Processing System
Proceedings of SPIE (December 15 1988)
Compact, free-electron laser devices
Proceedings of SPIE (September 30 1991)
High average power free electron lasers a new laser...
Proceedings of SPIE (August 15 2000)
Fast micromachining using picosecond lasers
Proceedings of SPIE (March 07 2005)

Back to Top