title: Nonlinear refractive index of fs-laser-written waveguides in fused silica.
abstract: We report on the measurement of the nonlinear refractive index of fs-laser written waveguides in fused silica by analyzing self-phase modulation of the propagating light. The nonlinear index is reduced considerably compared to the bulk material by the writing process and is furthermore highly dependant on processing parameters.
authors.forename: Dominik
authors.initials: D
authors.lastname: Blömer
authors.forename: Alexander
authors.initials: A
authors.lastname: Szameit
authors.forename: Felix
authors.initials: F
authors.lastname: Dreisow
authors.forename: Thomas
authors.initials: T
authors.lastname: Schreiber
authors.forename: Stefan
authors.initials: S
authors.lastname: Nolte
authors.forename: Andreas
authors.initials: A
authors.lastname: Tünnermann