title: Pre-chirping management of a self-similar Yb-fiber amplifier towards 80 W average power with sub-40 fs pulse generation.
abstract: We report on the generation of 80-W average power 38-fs laser pulse from a 2-m polarization-maintaining large-mode-area photonic crystal fiber amplifier with high pump absorption coefficient. The pre-chirping management was demonstrated to play a key role on the self-similar amplification. The achieved spectral bandwidth and compressed pulse duration were determined by the interplay between self-phase modulation and finite gain bandwidth. The power scaling in the self-similar fiber amplifier system was eventually limited by the onset of stimulated Raman scattering.
authors.forename: Jian
authors.initials: J
authors.lastname: Zhao
authors.forename: Wenxue
authors.initials: W
authors.lastname: Li
authors.forename: Chao
authors.initials: C
authors.lastname: Wang
authors.forename: Yang
authors.initials: Y
authors.lastname: Liu
authors.forename: Heping
authors.initials: H
authors.lastname: Zeng
mesh_terms: D000669:Amplifiers, Electronic; D004735:Energy Transfer; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005336:Fiber Optic Technology / Q000295:instrumentation*; D054023:Lasers, Semiconductor; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*; D015018:Ytterbium / Q000737:chemistry*
chemical_list: D015018:Ytterbium