title: Fabrication of fiber Bragg gratings with 267 nm femtosecond radiation.
abstract: Strong high-quality fiber Bragg gratings with photoinduced refractive-index modulation of more than 10-(3) were written in a Corning SMF-28 fiber, a P(2)O5-doped-core fiber and a pure-silica-core fluorine-doped-cladding fiber by third-harmonic radiation (267 nm, 150 fs and 1.2-1.8x1011 W/cm(2)) of a femtosecond Ti:sapphire laser using a phase mask. We compare the 267-nm photosensitivity responses with the results of irradiation by 193-nm ArF and 157-nm F(2) excimer lasers. The dependence of the refractive-index change on the exposure dose and the annealing characteristics of the fabricated gratings are typical for Type-I UV-written fiber gratings.
authors.forename: K
authors.initials: K
authors.lastname: Zagorulko
authors.forename: P
authors.initials: P
authors.lastname: Kryukov
authors.forename: Yu
authors.initials: Y
authors.lastname: Larionov
authors.forename: A
authors.initials: A
authors.lastname: Rybaltovsky
authors.forename: E
authors.initials: E
authors.lastname: Dianov
authors.forename: S
authors.initials: S
authors.lastname: Chekalin
authors.forename: Yu
authors.initials: Y
authors.lastname: Matveets
authors.forename: V
authors.initials: V
authors.lastname: Kompanets