Heraeus Quarzglas Gmbh & Co Kg

Heraeus Quarzglas Gmbh

Gerhard Sch&ouml;tz

Jan Vydra

A core glass for making a preform for an optical fiber particularly useful for the transmission of ultraviolet radiation and methods for making the core glass are disclosed. The core glass is obtained by the flame hydrolysis of a silicon compound, deposition of finely granular SiO on a substrate with direct vitrification and formation of a synthetic quartz glass. The quartz glass has a hydrogen content of less than 1&times;10 molecules/cm .

Adjusting the hydrogen content of a preform for an UV-optical fiber

In a known optical component a cylindrical glass core of synthetic quartz glass contains hydroxyl groups, a maximum 200 wt.-ppm of chlorine, and no dopant in the form of a metal oxide. The glass core is axially enveloped by a glass mantle of doped quartz glass which has a lower refractive index than the glass core. Setting out from this, in order to offer an optical component of quartz glass for broad-band transmission, especially for broad-band spectroscopy, which is characterized by low attenuation over a broad range of wavelengths, it is proposed by the invention that the core glass contain less than 5 wt.-ppm of hydroxyl groups.

Growing community of inventors

Aschaffenburg, Germany

Gerhard Schötz

Growing community of inventors

Aschaffenburg, Germany

Gerhard Sch&ouml;tz

Gerhard Schötz