Title :
Femtosecond laser writing Bragg gratings in pure silica photonic crystal fibres
Author :
Fu, L.B. ; Marshall, G.D. ; Bolger, J.A. ; Steinvurzel, P. ; Mägi, E.C. ; Withford, M.J. ; Eggleton, B.J.
Author_Institution :
CUDOS - Centre for Ultrahigh-bandwidth Devices for Opt. Syst., Sydney Univ., NSW, Australia
fDate :
5/26/2005 12:00:00 AM
Abstract :
The fabrication of Bragg gratings in pure silica photonic crystal fibres using ultra-violet femtosecond laser radiation at 267 nm is reported. Gratings have been fabricated with a depth of up to 10 dB and an average index change of Δn> 4×10-4. Thermal annealing investigations indicate that our grating type is not type II.
Keywords :
Bragg gratings; annealing; laser materials processing; optical fibres; photonic crystals; ultraviolet radiation effects; 267 nm; Bragg gratings fabrication; SiO2; average index change; femtosecond laser writing; pure silica photonic crystal fibres; thermal annealing; ultra-violet femtosecond laser radiation;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20051083
