J. Rothhardt,
S. Hädrich,
H. Carstens,
N. Herrick,
S. Demmler,
J. Limpert,
and A. Tünnermann
1 MHz repetition rate hollow fiber pulse compression to sub-100-fs duration at 100 W average power
Opt. Lett., 36 :4605 (December 2011)
1 MHz repetition rate hollow fiber pulse compression to sub-100-fs duration at 100 W average power
Opt. Lett., 36 :4605 (December 2011)
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.