Loading patent…
AssigneeDraka Fibre Technology B.V.
InventorsEric Aloysius Kuijpers, Peter Johannes Theodorus Pleunis
Estimating the term…
The present invention relates to a method of manufacturing an optical fiber suitable for high transmission rates, which method comprises the steps of: i) supplying one or more glass forming precursors, and possibly a dopant, to a quartz substrate tube, ii) forming a plasma in the quartz substrate tube for the purpose of bringing about a reaction in the reactive mixture so as to form glass layers, which may or may not be doped, on the interior of the substrate tube, iii) collapsing the substrate tube obtained in step ii) into a preform while heating, iv) drawing an optical fiber from the preform while heating. The present invention furthermore relates to an optical fiber suitable for high transmission rates.
A method of manufacturing a multimode optical fibre suitable for transmission rates equal to or higher than 1 Gigabit/sec, which method comprises the steps of:
An optical fibre, characterized in that said optical fibre is suitable for data transmission rates of at least 1 Gigabit/sec over a distance of at least 1000 m at a wavelength in the range of 1300 nm, wherein separate layers are deposited in a region having a diameter of 10 μm at the most in the centre of the optical fibre, wherein at least one of said separate layers has a surface area of 2 μm2 at the most, in particular 1 μm2 at the most, wherein the refractive index value in the fibre that is finally drawn increases in the direction of the centre thereof.
An optical fibre, characterized in that said optical fibre is suitable for transmitting information at a rate of at least 1 Gigabit/sec over a distance of at least 550 m both in the 1300 nm band and in the 850 nm band, wherein separate layers are deposited in a region having a diameter of 10 μm at the most in the centre of the optical fibre, wherein at least one of said separate layers has a surface area of 2 μm2 at the most, in particular 1 μm2 at the most, wherein the refractive index value in the fibre that is finally drawn increases in the direction of the centre thereof.
An optical fibre, characterized in that said optical fibre is suitable for transmission rates of at least 10 Gigabit/sec in the 850 nm band over a distance of at least 300 m, wherein separate layers are deposited in a region having a diameter of 10 μm at the most in the centre of the optical fibre, wherein at least one of said separate layers has a surface area of 2 μm2 at the most, in particular 1 μm2 at the most, wherein the refractive index value in the fibre that is finally drawn increases in the direction of the centre thereof.
An optical fibre, characterized in that said optical fibre is suitable for transmitting information at a rate of at least 10 Gigabit/sec in the 850 nm band over a distance of at least 300 m, wherein said fibres have an OFL bandwidth of more than 500 Mhz.km, wherein separate layers are deposited in a region having a diameter of 10 μm at the most in the centre of the optical fibre, wherein at least one of said separate layers has a surface area of 2 μm2 at the most, in particular 1 μm2 at the most, wherein the refractive index value in the fibre that is finally drawn increases in the direction of the centre thereof.
Dependencies are inferred from the claim text.