Title :
Ultra narrow-band optical fibre sidetap filters
Author :
Holmes, M.J. ; Kashyap, R. ; Wyatt, R. ; Smith, R.P.
Author_Institution :
Dept. of Electron., King´´s Coll., London, UK
Abstract :
We present a new fibre structure for use in sidetap filters for telecommunications applications with low insertion loss due to splices and bends and a filter FWHM bandwidth of only 3.4 nm. The aim of our research in this area has been to find fibre and grating designs yielding very narrow filter responses while maintaining low backreflection by the appropriate choice of blaze angle, and low insertion loss due to splices and bends by the appropriate choice of index profile
Keywords :
diffraction gratings; optical fibre communication; optical fibre fabrication; optical fibre filters; optical fibre losses; reflectivity; waveguide discontinuities; blaze angle; fibre structure; filter FWHM bandwidth; grating designs; index profile; low backreflection; low insertion loss; optical fibre bends; optical fibre splices; telecommunications applications; ultra narrow-band optical fibre sidetap filters; very narrow fibre filter responses; Filtering theory; Frequency conversion; Gratings; Narrowband; Optical fiber filters; Optical fibers; Optical filters; Optical frequency conversion; Optical scattering; Optical sensors;
Conference_Titel :
Optical Communication, 1998. 24th European Conference on
Conference_Location :
Madrid
Print_ISBN :
84-89900-14-0
DOI :
10.1109/ECOC.1998.732472
