title: Silica-glass contribution to the effective nonlinearity of hollow-core photonic band-gap fibers.
abstract: We measure the effective nonlinearity of various hollow-core photonic band-gap fibers. Our findings indicate that differences of tens of nanometers in the fiber structure result in significant changes to the power propagating in the silica glass and thus in the effective nonlinearity of the fiber. These results show that it is possible to engineer the nonlinear response of these fibers via small changes to the glass structure.
authors.forename: Christopher J
authors.initials: CJ
authors.lastname: Hensley
authors.forename: Dimitre G
authors.initials: DG
authors.lastname: Ouzounov
authors.forename: Alexander L
authors.initials: AL
authors.lastname: Gaeta
authors.forename: Natesan
authors.initials: N
authors.lastname: Venkataraman
authors.forename: Michael T
authors.initials: MT
authors.lastname: Gallagher
authors.forename: Karl W
authors.initials: KW
authors.lastname: Koch