Patent · US Expired

Single step laydown method of making dry fiber with complex fluorine doped profile

US6843076B2 · kind B2 · utility

3Cited by

10References

43Claims

0Family size

Assignee

CORNING INCORPORATED · US

Inventors

Steven Bruce Dawes · Corning, US
Michael Murtagh · Corning, US
Pushkar Tandon · Corning, US

Key dates

Filing date	Jul 30, 2001
Grant date	Jan 18, 2005
Priority date	—
Expiry date	Mar 28, 2022

Classification

Technology area (CPC G)Physics
CPC primaryG02B6/0283
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A method of making an optical waveguide preform includes forming a preform including a first portion and a second radial portion, wherein the second portion includes a dopant, and wherein the first portion exhibits a density greater than the second portion. The method further includes stripping at least a portion of the dopant from the second portion. In a preferred embodiment, the stripped dopant has migrated in a previous processing step.

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