17 February 2017 Multi-pass resonator design for energy scaling of mode-locked thin-disk lasers
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Abstract
We present a novel multi-pass resonator architecture paving the way for pulse energy scaling of mode-locked thin-disk lasers. It consists of a concatenation of nearly identical optical segments, each segment corresponding to a round-trip in an optically stable cavity containing an active medium exhibiting soft aperture effects. Contrarily to state-of-the-art multi-pass oscillators based on imaging schemes, the stability region (for variations of the active medium thermal lens) of the here disclosed resonator architecture does not shrink with the number of passes. As a result, the proposed architecture enables the realization of an arbitrarily large number of passes at the thin-disk at a given pump power without the reduction of output power seen in the imaging-based state-of-the-art multi-pass oscillators.
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K. Schuhmann, K. Schuhmann, K. Kirch, K. Kirch, A. Antognini, A. Antognini, } "Multi-pass resonator design for energy scaling of mode-locked thin-disk lasers", Proc. SPIE 10082, Solid State Lasers XXVI: Technology and Devices, 100820J (17 February 2017); doi: 10.1117/12.2251913; https://doi.org/10.1117/12.2251913
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