Title :
Biconical taper coaxial coupler filter
Author :
Boucouvalas, A.C. ; Georgiou, Giorgos
Author_Institution :
GEC Research Limited, Hirst Research Centre, Wembley, UK
Abstract :
The wavelength-dependent transmission characteristics of biconical tapers fabricated from single-mode fibres of depressed cladding are examined. The wavelength response is found to be oscillatory with large modulation depths. We describe here a simple fabrication technique which produces narrow passband filters of low loss and high extinction ratio (>30dB).
Keywords :
band-pass filters; optical couplers; optical fibres; optical filters; optical workshop techniques; biconical tapers; coaxial coupler filter; depressed cladding; fabrication technique; high extinction ratio; large modulation depths; low loss; narrow passband filters; optical fibres; single-mode fibres; wavelength-dependent transmission characteristics;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19850733
