title: Optimal pulse compression in long hollow fibers.
abstract: The spectral broadening performance of 1 m and 3 m long hollow fibers are compared. The 3 m capillary clearly outperforms the 1 m one in terms of both transmission and achievable spectral broadening. Starting from 1.1 mJ 71 fs pulses at 780 nm, a spectral broadening ratio of 26 was achieved using a single 3 m long argon-filled hollow fiber. After compression the measured pulse duration was 4.5 fs corresponding to a compression ratio of 16 at an energy of 0.42 mJ. Both the pulse duration and the pulse energy were limited by the applied chirped mirrors.
authors.affiliation: Laser-Laboratorium Göttingen eV, Göttingen, Germany. tamas.nagy@llg‑ev.de
authors.forename: Tamas
authors.initials: T
authors.lastname: Nagy
authors.forename: Vladimir
authors.initials: V
authors.lastname: Pervak
authors.forename: Peter
authors.initials: P
authors.lastname: Simon