Patent · US Active

Optical fiber preform

US8265439B2 · kind B2 · utility

2Cited by

6References

23Claims

0Family size

Assignee

Draka Comteq B.V. · NL

Inventors

Cedric Gonnet · Paris, FR
Elise Regnier · Bièvres, FR
Frans Gooijer · Sorocaba, BR
Pascale Nouchi · Palaiseau, FR

Key dates

Filing date	Apr 12, 2010
Grant date	Sep 11, 2012
Priority date	—
Expiry date	Oct 9, 2030

Classification

Technology area (CPC G)Physics
CPC primaryG02B6/0365
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

An optical fiber preform comprises a primary preform that includes at least one inner cladding and a central core deposited inside a fluorine doped silica tube. The fluorine doped silica tube has a cross section area that is no more than about 15 percent smaller than the cross section area of the primary preform. The optical fiber preform has a large capacity, may be manufactured at reduced cost, and may be drawn to produce an optical fiber having reduced transmission losses.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.