Patent · US Expired

Method for forming a longitudinal solid body within an optical fiber

US7536876B2 · kind B2 · utility

0Cited by

5References

19Claims

0Family size

Assignee

Acreo AB · SE

Inventors

Michael Fokine · Stuvsta-Snättringe, SE
Lars Nilsson · Torslanda, SE
Asa Claesson · Stockholm, SE
Laurent Krummenacher · Huddinge, SE
Walter Margulis · Rio de Janeiro, BR
Leif Kjellberg · Stockholm, SE

Key dates

Filing date	Jul 2, 2002
Grant date	May 26, 2009
Priority date	—
Expiry date	Mar 30, 2024

Classification

Technology area (CPC G)Physics
CPC primaryG02F2201/307
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A method of forming a longitudinal solid body within at least one longitudinal hole formed in an optical fiber, comprising the steps of placing a first end and a portion of the optical fiber in a heating chamber; keeping a second end of said optical fiber outside of the heating chamber; forcing a molten material into the longitudinal hole of the fiber from the first end; and thereupon longitudinally extracting the optical fiber from the heating chamber at a controlled rate. Preferably, the fiber is extracted while molten material is being urged into the fiber.

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