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Patent Searching and Data


Title:
A METHOD FOR MAKING PHOTOSENSITIVE FIBER SUITABLE FOR WAVELENGTH STABILIZATION GRATINGS
Document Type and Number:
WIPO Patent Application WO2002079109
Kind Code:
A9
Abstract:
The present invention includes a method of making a preform for an enhanced photosensitive fiber comprising depositing successive layers of optical material the inside a tube using modified chemical vapor deposition, and collapsing the layers of optical material in a reducing atmosphere with a reduced pressure (most preferably 0.2 to 0.4 torr). The present invention also includes a method of making an enhanced photosensitive fiber comprising making a preform using modified chemical vapor deposition wherein the preform is collapsed in a reducing atmosphere with a reduced pressure and drawing undertension (eg. 100 to 250g) the preform into a fiber. A grating can be formed by exposing the drawn fiber to ultraviolet light.

Inventors:
DAVIS MONICA K
QI GANG
Application Number:
US0202879W
Publication Date:
December 19, 2002
Filing Date:
January 31, 2002
Export Citation:
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Assignee:
CORNING INC (US)
International Classes:
C03B37/018; C03B37/027; G02B6/02; (IPC1-7): C03B37/018; C03B37/027; G02B6/16
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