Title: Fluorine-doped optical fibre and method of manufacturing such fibre
Application Number: 86100041 Application Date: 1986.01.08
Publication Number: 1001402 Publication Date: 1986.07.09
Approval Pub. Date: 1993.09.15 Granted Pub. Date: 1993.09.15
International Classifi-cation: C03B37/018
Applicant(s) Name: N.V. Philips Gloeilampenfabrieken Address:
Inventor(s) Name: Backman Peter Klaus
Attorney & Agent: ZHANG ZHIXING
Abstract:
    In an optical fiber based on silicon dioxide with fluorine doping which determines its refractive index profile, at least in the light transmitting core a substance is added that increases the thermal expansion coefficient. The added substance is uniformly distributed at least in the light transmitting core, and reduces the influence of the drawing force Fz (during drawing of the preform) on the Rayleigh scattering alpha R and the wavelength-independent
Time: 10