title: Optical fibers with negative group-velocity dispersion in the visible.
abstract: Dispersion measurements have been performed in optical fibers having a photoinduced refractive-index grating in the core. The results show that negative group-velocity dispersion can be obtained in these fibers over a frequency region of 500 MHz for wavelengths shorter than 550 nm.
authors.forename: C P
authors.initials: CP
authors.lastname: Kuo
authors.forename: U
authors.initials: U
authors.lastname: Osterberg
authors.forename: C T
authors.initials: CT
authors.lastname: Seaton
authors.forename: G I
authors.initials: GI
authors.lastname: Stegeman
authors.forename: K O
authors.initials: KO
authors.lastname: Hill