66 W average power from a microjoule-class sub-100 fs fiber oscillator |
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Authors: | Baumgartl Martin Lecaplain Caroline Hideur Ammar Limpert Jens Tünnermann Andreas |
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Institution: | Institute of Applied Physics, Abbe Center of Photonics, Friedrich-Schiller-Universit?t Jena, Jena, Germany. martin.baumgartl@uni?jena.de |
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Abstract: | Performance scaling of passively mode-locked ultrashort-pulse fiber oscillators in terms of average power, peak power, and pulse energy is demonstrated. A very-large-mode-area fiber laser in an all-positive group-velocity-dispersion ring cavity configuration with intracavity spectral filter, mode-locked by nonlinear polarization evolution, emits 66 W of average power at 76 MHz repetition rate, corresponding to 0.9 μJ pulse energy. The pulses are dechirped to 91 fs outside the cavity with an average power of 60 W remaining after the compressor. The generated pulse peak power is as high as 7 MW. |
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