Measurements on waveguide properties of GeO <sub>2</sub> -SiO <sub>2</sub> -cored optical fibres

P.W. Black, J. Irven, K.C. Byron, I.S. Few, R. E. Worthington

Electronics Letters · 1974 · 15 citations · 0 references

Concepts

Abstract

Total attenuation and scatter loss measurements have been made on optical-fibre waveguides produced with graded refractive-index profiles in GeO-2-SiO2 cores. The total attenuation of the fibres at semiconductor-laser wavelengths has been reduced to less than 4 dB/km.