Title :
Wavelength dependence of fused couplers
Author_Institution :
British Telecom Research Laboratories, Ipswich, UK
Abstract :
The transmission characteristics of fused couplers are evaluated as a function of the cross-sectional radius and the degree of fusion. The wavelength dependence of the coupling ratio is then examined with a view to minimising the wavelength dependence in wavelength-multiplexed optical networks. The effect of changing the external refractive index is also considered.
Keywords :
optical communication equipment; optical couplers; optical fibres; coupling ratio; cross-sectional radius; external refractive index variation; fused couplers; optical communication equipment; optical fibres; refractive index variation; transmission characteristics; wavelength dependence; wavelength-multiplexed optical networks;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19860219
