Fluorine Containing High-Silica Glasses for Speciality Optical Fibers

Johannes Kirchhof; Sonja Unger; B. Knappe

doi:10.4028/www.scientific.net/AMR.39-40.265

Paper Titles

Second-Harmonic Generation in Thermally Poled Na₂O-Al₂O₃-TeO₂ Glasses
p.247

Optical Transitions in Chalcogenide Glasses From the Point of View of a Barrier-Cluster Model
p.253

Lead-Free High Refractive Index Glasses Produced from Local Raw Materials
p.257

7- and 19-Element-Core Bend-Resistant Microstructured Fibers
p.261

Fluorine Containing High-Silica Glasses for Speciality Optical Fibers
p.265

The Influence of the Vitreous Matrix for the Determination of the Lanthanides Doping Concentration from the Optical Transmission Spectra
p.269

Anomalously Low Light Scattering in the Na₂O-Nb₂O₅-SiO₂ Glass-Ceramics
p.273

Complex Study of E-Glass Corrosion
p.279

Liquidus Temperatures of Bioactive Glasses
p.287

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 39-40Fluorine Containing High-Silica Glasses for...

Fluorine Containing High-Silica Glasses for Speciality Optical Fibers

Abstract:

We investigated the codoping of different high-silica glasses (GeO2 – SiO2, B2O3 – SiO2) with fluorine with respect to the use of such glasses in actual optical fiber devices (fiber Bragg gratings, fiber lasers and amplifiers, optical filters, etc). It could be shown that there is a strong interaction between fluorine and the other dopants germanium and boron during gas phase deposition of the glassy layers. The doping concentration in dependence on the experimental conditions (gas concentrations, flow velocity, temperature) can be understood and quantitatively described on the basis of the chemical thermodynamics (equilibrium chemistry) of the systems. This makes possible the defined preparation of complex fiber structures in terms of refractive index profiles and multielement distributions.