1 MHz repetition rate hollow fiber pulse compression to sub-100-fs duration at 100 W average power |
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Authors: | Rothhardt Jan Hädrich Steffen Carstens Henning Herrick Nicholas Demmler Stefan Limpert Jens Tünnermann Andreas |
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Institution: | Institute of Applied Physics, Friedrich-Schiller-University Jena, Albert-Einstein-Strasse 15, 07745 Jena, Germany. jan.rothhardt@uni‐jena.de |
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Abstract: | We report on nonlinear pulse compression at very high average power. A high-power fiber chirped pulse amplification system based on a novel large pitch photonic crystal fiber delivers 700 fs pulses with 200 μJ pulse energy at a 1 MHz repetition rate, resulting in 200 W of average power. Subsequent spectral broadening in a xenon-filled hollow-core fiber and pulse compression with chirped mirrors is employed for pulse shortening and peak power enhancement. For the first time, to our knowledge, more than 100 W of average power are transmitted through a noble-gas-filled hollow fiber. After pulse compression of 81 fs, 93 μJ pulses are obtained at a 1 MHz repetition rate. |
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