Open AccessInscription of fibre Bragg gratings in non-sensitised fibres using VUV F_2 laser radiation
Author(s) -
P. E. Dyer,
A. M. Johnson,
C.D. Walton
Publication year - 2008
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.16.019297
Subject(s) - cladding (metalworking) , optics , materials science , fiber bragg grating , refractive index , laser , grating , radiation , subwavelength diameter optical fibre , core (optical fiber) , phosfos , optical fiber , optoelectronics , graded index fiber , fiber optic sensor , physics , composite material
We report the inscription of fibre Bragg gratings in non-sensitised SMF 28 and HI 980 fibre by exposure to VUV F2 laser radiation at 157 nm. The modulated effective refractive index change Deltan(eff) deduced from the shift in the grating reflection peaks was Deltan(eff) = 2.8x10(-4) and 1.7x10(-4) in SMF 28 and HI 980 fibre respectively. The possible influence of non-uniformity of core exposure and VUV cladding absorption loss on these results is discussed.