%0 Electronic Article %A F.M.E. Sladen %A D.N. Payne %A M.J. Adams %K extended wavelength range %K optical dispersion %K profile dispersion data %K SiO2:GeO2 optical fibres %K wavelength dependence %X New results are presented for the wavelength dependence of the profile-dispersion parameter P in optical waveguides fabricated from germanosilicate glasses. These results show that P is independent of both GeO2 concentration and thermal history of the glasses. %@ 0013-5194 %T Definitive profile-dispersion data for germania-doped silica fibres over an extended wavelength range %B Electronics Letters %D July 1979 %V 15 %N 15 %P 469-470 %I Institution of Engineering and Technology %U https://digital-library.theiet.org/;jsessionid=bropq1t6j2hd6.x-iet-live-01content/journals/10.1049/el_19790338 %G EN