title: Bragg gratings in air-silica structured fibers.
abstract: We report on grating writing in air-silica structured optical fibers with pure silica cores by use of two-photon absorption at 193 nm. A decrease in propagation loss with irradiation was observed. The characteristic growth curves were obtained.
authors.affiliation: Optical Fibre Technology Centre, University of Sydney, 206 National Innovation Centre, Eveleigh 1430, Sydney, NSW, Australia.
authors.forename: N
authors.initials: N
authors.lastname: Groothoff
authors.forename: I
authors.initials: I
authors.lastname: Canning
authors.forename: E
authors.initials: E
authors.lastname: Buckley
authors.forename: K
authors.initials: K
authors.lastname: Lyttikainen
authors.forename: J
authors.initials: J
authors.lastname: Zagari