title: White-light supercontinuum generation in normally dispersive optical fiber using original multi-wavelength pumping system.
abstract: We report on the experimental demonstration of a white-light supercontinuum generation in normally dispersive singlemode air-silica microstructured fiber. We demonstrate that the simultaneous excitation of the microstuctured fiber in its normal and anomalous dispersion regimes using the fundamental and second harmonic signals of a passively Q-switched microchip laser leads to a homogeneous supercontinuum in the visible range. This pumping scheme allows the suppression of the cascaded Raman effect predominance in favor of an efficient spectrum broadening induced by parametric phenomena. A flat supercontinuum extended from 400 to 700 nm is achieved.
authors.forename: Pierre-Alain
authors.initials: PA
authors.lastname: Champert
authors.forename: Vincent
authors.initials: V
authors.lastname: Couderc
authors.forename: Philippe
authors.initials: P
authors.lastname: Leproux
authors.forename: Sébastien
authors.initials: S
authors.lastname: Février
authors.forename: Vincent
authors.initials: V
authors.lastname: Tombelaine
authors.forename: Laurent
authors.initials: L
authors.lastname: Labonté
authors.forename: Philippe
authors.initials: P
authors.lastname: Roy
authors.forename: Claude
authors.initials: C
authors.lastname: Froehly
authors.forename: Philippe
authors.initials: P
authors.lastname: Nérin