Share Email Print
cover

Proceedings Paper • new

Highly efficient dual-grating 3-channel spectral beam combining of narrow-linewidth monolithic cw Yb-doped fiber amplifiers up to 5.5 kW
Author(s): Maximilian Strecker; Marco Plötner; Fabian Stutzki; Till Walbaum; Sascha Ehrhardt; Tino Benkenstein; Uwe Zeitner; Thomas Schreiber; Ramona Eberhardt; Andreas Tünnermann; Uwe Stuhr; Markus Jung; Klaus Ludewigt
Format Member Price Non-Member Price
PDF $17.00 $21.00

Paper 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.

Paper Details

Date Published: 7 March 2019
PDF: 6 pages
Proc. SPIE 10897, Fiber Lasers XVI: Technology and Systems, 108970E (7 March 2019); doi: 10.1117/12.2508674
Show Author Affiliations
Maximilian Strecker, Fraunhofer-Institut für Angewandte Optik und Feinmechanik (Germany)
Marco Plötner, Fraunhofer-Institut für Angewandte Optik und Feinmechanik (Germany)
Fabian Stutzki, Fraunhofer-Institut für Angewandte Optik und Feinmechanik (Germany)
Till Walbaum, Fraunhofer-Institut für Angewandte Optik und Feinmechanik (Germany)
Sascha Ehrhardt, Fraunhofer-Institut für Angewandte Optik und Feinmechanik (Germany)
Tino Benkenstein, Fraunhofer-Institut für Angewandte Optik und Feinmechanik (Germany)
Uwe Zeitner, Fraunhofer-Institut für Angewandte Optik und Feinmechanik (Germany)
Thomas Schreiber, Fraunhofer-Institut für Angewandte Optik und Feinmechanik (Germany)
Ramona Eberhardt, Fraunhofer-Institut für Angewandte Optik und Feinmechanik (Germany)
Andreas Tünnermann, Fraunhofer-Institut für Angewandte Optik und Feinmechanik (Germany)
Uwe Stuhr, Rheinmetall Waffe Munition GmbH (Germany)
Markus Jung, Rheinmetall Waffe Munition GmbH (Germany)
Klaus Ludewigt, Rheinmetall Waffe Munition GmbH (Germany)


Published in SPIE Proceedings Vol. 10897:
Fiber Lasers XVI: Technology and Systems
Adrian L. Carter; Liang Dong, Editor(s)

© SPIE. Terms of Use
Back to Top