Title :
Optimised square passband fibre Bragg grating filter with in-band flat group delay response
Author :
Ibsen, M. ; Durkin, M.K. ; Cole, M.J. ; Laming, R.I.
Author_Institution :
Optoelectron. Res. Centre, Southampton Univ.
fDate :
4/16/1998 12:00:00 AM
Abstract :
Through a controlled apodised sine-shaped refractive index profile, an optimised square reflection band Bragg grating filter is demonstrated. The filter is 5 cm long and has a flat dispersion profile within the photonic bandgap and an edge steepness of 7.9 dB/GHz
Keywords :
diffraction gratings; optical fibre dispersion; optical fibre filters; refractive index; 5 cm; controlled apodised refractive index profile; fibre Bragg grating filter; flat dispersion profile; in-band flat group delay response; optimised square passband filter; photonic bandgap; sine-shaped refractive index profile; square reflection band;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19980528
