22 February 2013 Design evolution, long term performance and application tests of extra large mode area (XLMA) fiber lasers
Author Affiliations +
Abstract
XLMA fibers based on Yb-doped bulk silica possess an excellent refractive index and doping level homogeneity [1]. To achieve the highest optical-to-optical efficiency and long-term operation without degradation we simulated the effect of the brightness conversion factor of different core dopant compositions of such XLMA fibers. We also investigated the beam quality of a multi-kW single XLMA fiber laser system and its long-term stability. The current state-of-the-art XLMA single fiber laser has 5 kW maximum output power and a degradation rate of about 0.5 % / 500 h at 4 kW measured over a period of 1700 h. Several application tests demonstrate the excellent performance of the XLMA fiber laser.
© (2013) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Andreas Langner, Andreas Langner, Mario Such, Mario Such, Gerhard Schötz, Gerhard Schötz, Florian Just, Florian Just, Martin Leich, Martin Leich, Stephan Grimm, Stephan Grimm, Jan Dellith, Jan Dellith, Matthias Jäger, Matthias Jäger, Kay Schuster, Kay Schuster, Hagen Zimer, Hagen Zimer, Marcin Kozak, Marcin Kozak, Björn Wedel, Björn Wedel, Georg Rehmann, Georg Rehmann, Charley Bachert, Charley Bachert, Volker Krause, Volker Krause, } "Design evolution, long term performance and application tests of extra large mode area (XLMA) fiber lasers", Proc. SPIE 8601, Fiber Lasers X: Technology, Systems, and Applications, 86010G (22 February 2013); doi: 10.1117/12.2000472; https://doi.org/10.1117/12.2000472
PROCEEDINGS
13 PAGES


SHARE
Back to Top