Single step laydown method of making dry fiber with complex...

Details Single step laydown method of making dry fiber with complex... Single step laydown method of making dry fiber with complex...

2005-01-18

2005-01-18

Chin, Peter (Department: 1731)

Glass manufacturing

Processes of manufacturing fibers, filaments, or preforms

Process of manufacturing optical fibers, waveguides, or...

C065S392000, C065S415000, C065S416000, C065S421000, C065S422000, C065S425000, C065S426000, C065S427000, C065S429000

Reexamination Certificate

active

06843076

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.

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patent: 6474107 (2002-11-01), Dabby
patent: 20020005051 (2002-01-01), Brown et al.

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