Journal
OPTICS LETTERS
Volume 36, Issue 23, Pages 4605-4607Publisher
OPTICAL SOC AMER
DOI: 10.1364/OL.36.004605
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Funding
- German Federal Ministry of Education and Research (BMBF) [05 ES7GU1]
- Helmholtz Institute Jena
- European Research Council under the European Union [240460]
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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 mu J 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 mu J pulses are obtained at a 1 MHz repetition rate. (C) 2011 Optical Society of America
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