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Multi-kW performance analysis of Yb-doped monolithic single-mode amplifier and oscillator setup
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Paper Abstract

We present and compare the performance of bidirectionally pumped Yb-doped monolithic amplifier and oscillator setups in 20/400 μm geometry tested up to signal powers of 3.5 kW and 5 kW without the occurrence of transverse mode instabilities and maintaining a single mode beam quality of M2 ~ 1.3. The scaling was primarily limited by the nonlinear effect of Stimulated Raman Scattering. This contribution contains detailed analysis of the temporal and spectral behavior of both configurations. The results show the excellent feasibility of monolithic oscillators and FBG for high power operation, even outperforming the amplifier pendant in terms of output power.

Paper Details

Date Published: 7 March 2019
PDF: 7 pages
Proc. SPIE 10897, Fiber Lasers XVI: Technology and Systems, 108970D (7 March 2019); doi: 10.1117/12.2509348
Show Author Affiliations
Friedrich Möller, Fraunhofer-Institut für Angewandte Optik und Feinmechanik (Germany)
Ria G. Krämer, Friedrich-Schiller-Univ. Jena (Germany)
Christian Matzdorf, Friedrich-Schiller-Univ. Jena (Germany)
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)
Thomas Schreiber, Fraunhofer-Institut für Angewandte Optik und Feinmechanik (Germany)
Ramona Eberhardt, Fraunhofer-Institut für Angewandte Optik und Feinmechanik (Germany)
Stefan Nolte, Fraunhofer-Institut für Angewandte Optik und Feinmechanik (Germany)
Friedrich-Schiller-Univ. Jena (Germany)
Andreas Tünnermann, Fraunhofer-Institut für Angewandte Optik und Feinmechanik (Germany)
Friedrich-Schiller-Univ. Jena (Germany)


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

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