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US 2025/0091931 A1Published application
Quartz fibre with hydrogen barrier layer and method for the production thereof
AssigneeJ-Fiber GmbH
InventorWOLFGANG HAEMMERLE
Life of this patent
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Abstract
A quartz glass fibre includes a fibre core of quartz glass produced by modified chemical vapor deposition (MCVD). A fluorine-doped radial layer is provided on the fibre core. A cladding layer of quartz glass contains chlorine and covers the fluorine-doped radial layer to define a hydrogen barrier around the fibre core in response to being irradiated by defect-generating ultra-violet (UV) radiation. The cladding layer has at least one of a combination of E′ defects and non-bridging oxygen hole center (NBOHC) defects and a combination of Si—OH and Si—H compounds.
Claims10
Quartz glass fibre, comprising:
- a) a fibre core of quartz glass produced by modified chemical vapor deposition (MCVD),
- b) a fluorine-doped radial layer on the fibre core,
- c) a cladding layer of quartz glass containing chlorine and covering the fluorine-doped radial layer to define a hydrogen barrier around the fibre core in response to being irradiated by defect-generating ultra-violet (UV) radiation,
- wherein
- d1) the cladding layer has E′ defects and non-bridging oxygen hole center (NBOHC) defects, or
- d2) the cladding layer has Si—OH and Si—H compounds.
3 more elements
Dependencies are inferred from the claim text.