title: Photosensitivity of gallium-doped silica core fiber to 193 nm ArF excimer laser.
abstract: Grating inscription in a Ga-doped silica core fiber (~5 wt. % Ga) has been demonstrated using ArF (193 nm) and KrF (248 nm) excimer lasers. In a comparative study with germanosilicate fiber with similar Ge concentration, a Ga-doped silica core fiber shows greater photosensitivity to an ArF excimer laser due to the higher absorbance in the region of 190-195 nm. In addition, the photosensitivity of a Ga-doped silica core fiber has been greatly enhanced with hydrogenation. Ga-doped fibers are potential photosensitive fibers for fiber Bragg grating production with an ArF excimer laser.
authors.forename: Dinusha S
authors.initials: DS
authors.lastname: Gunawardena
authors.forename: Khairul A
authors.initials: KA
authors.lastname: Mat-Sharif
authors.forename: Nizam
authors.initials: N
authors.lastname: Tamchek
authors.forename: Man-Hong
authors.initials: MH
authors.lastname: Lai
authors.forename: Nasr Y M
authors.initials: NY
authors.lastname: Omar
authors.forename: Siamak D
authors.initials: SD
authors.lastname: Emami
authors.forename: Shahrin Z
authors.initials: SZ
authors.lastname: Muhamad-Yasin
authors.forename: Mohd I
authors.initials: MI
authors.lastname: Zulkifli
authors.forename: Zulfadzli
authors.initials: Z
authors.lastname: Yusoff
authors.forename: Hairul A
authors.initials: HA
authors.lastname: Abdul-Rashid
authors.forename: Kok-Sing
authors.initials: KS
authors.lastname: Lim
authors.forename: Harith
authors.initials: H
authors.lastname: Ahmad