Translator Disclaimer
Paper
7 March 2019 Highly efficient dual-grating 3-channel spectral beam combining of narrow-linewidth monolithic cw Yb-doped fiber amplifiers up to 5.5 kW
Author Affiliations +
Abstract
We present highly efficient three-channel dual-grating spectral beam combining with a combined signal output power of 5.5 kW at an excellent beam quality of M2 = 1.5. Three 2-kW all-fiber narrow-linewidth continuous-wave Ytterbium-doped fiber amplifiers at 1050 nm, 1070 nm and 1090 nm were combined using in-house fabricated polarizationindependent dielectric reflection gratings. The total combining efficiency was 94% at full power level, which is close to the expected value referred to the incorporated grating’s efficiency in a dual-grating setup.
© (2019) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Maximilian Strecker, Marco Plötner, Fabian Stutzki, Till Walbaum, Sascha Ehrhardt, Tino Benkenstein, Uwe Zeitner, Thomas Schreiber, Ramona Eberhardt, Andreas Tünnermann, Uwe Stuhr, Markus Jung, and Klaus Ludewigt "Highly efficient dual-grating 3-channel spectral beam combining of narrow-linewidth monolithic cw Yb-doped fiber amplifiers up to 5.5 kW ", Proc. SPIE 10897, Fiber Lasers XVI: Technology and Systems, 108970E (7 March 2019); https://doi.org/10.1117/12.2508674
PROCEEDINGS
6 PAGES


SHARE
Advertisement
Advertisement
Back to Top