title: Femtosecond pulse spectral synthesis in coherently-spectrally combined multi-channel fiber chirped pulse amplifiers.
abstract: We demonstrate coherent spectral beam combining and femtosecond pulse spectral synthesis using three parallel fiber chirped pulse amplifiers, each amplifying different ultrashort-pulse spectra. This proof-of-concept experiment opens a path to simultaneously overcome individual-amplifier energy and power limitations, as well as limitations on amplified pulse spectra due to the gain narrowing in a single fiber amplifier.
authors.affiliation: Center for Ultrafast Optical Science, University of Michigan, Ann Arbor, Michigan 48109, USA. wzchang@umich.edu
authors.forename: Wei-zung
authors.initials: WZ
authors.lastname: Chang
authors.forename: Tong
authors.initials: T
authors.lastname: Zhou
authors.forename: Leo A
authors.initials: LA
authors.lastname: Siiman
authors.forename: Almantas
authors.initials: A
authors.lastname: Galvanauskas
mesh_terms: D000669:Amplifiers, Electronic; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005336:Fiber Optic Technology / Q000295:instrumentation*; D007834:Lasers; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*