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7 March 2019 Multi-kW performance analysis of Yb-doped monolithic single-mode amplifier and oscillator setup
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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.
Conference Presentation
© (2019) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Friedrich Möller, Ria G. Krämer, Christian Matzdorf, Maximilian Strecker, Marco Plötner, Fabian Stutzki, Till Walbaum, Thomas Schreiber, Ramona Eberhardt, Stefan Nolte, and Andreas Tünnermann "Multi-kW performance analysis of Yb-doped monolithic single-mode amplifier and oscillator setup", Proc. SPIE 10897, Fiber Lasers XVI: Technology and Systems, 108970D (7 March 2019); https://doi.org/10.1117/12.2509348
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