The improved wall-plug efficiency and minimal maintenance of diode laser systems over Nd:YAG and CO₂ lasers has been admired by many manufacturers. Until recently, most diode laser systems could not compete at high-power levels or with the same beam quality. Nuvonyx reports the design and initial development of a diode laser system that delivers 2000 W from a 600 μm core fiber with a 0.22 NA. This system is suitable as a stand-alone industrial direct diode laser system or as a multi-kilowatt fiber laser pump source. The development of a high brightness bar technology by Nuvonyx and its collaborators along with the use of polarization beam combining is the core of this laser system. Each emitter operates with a single lateral mode resulting in a high brightness bar that outputs up to 50 W. The wavelength of the laser is centered at 975 nm with a width of less than ± 3 nm. The demonstration of this laser system defines a clear path to scale this technology to 4000 W.

Date Published: 15 February 2006
PDF: 7 pages
Proc. SPIE 6104, High-Power Diode Laser Technology and Applications IV, 61040N (15 February 2006); doi: 10.1117/12.660635

Published in SPIE Proceedings Vol. 6104:
High-Power Diode Laser Technology and Applications IV
Mark S. Zediker, Editor(s)