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 pulses with pulse energy at a repetition rate, resulting in 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 of average power are transmitted through a noble-gas-filled hollow fiber. After pulse compression of , pulses are obtained at a repetition rate.
© 2011 Optical Society of America
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