Method of making a glass preform for low water peak optical fiber
AssigneeCorning Incorporated
InventorsGeorge E. Berkey, Dana C. Bookbinder, Richard M. Fiacco, Dale R. Powers
Life of this patent
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Abstract
Optical waveguide fiber having low water peak as well as optical waveguide fiber preforms and methods of making optical waveguide fiber preforms from which low water peak and/or low hydrogen aged attenuation optical waveguide fibers are formed, including optical waveguide fiber and preforms made via OVD. The fibers may be hydrogen resistant, i.e. exhibit low hydrogen aged attenuation. A low water peak, hydrogen resistant optical waveguide fiber is disclosed which exhibits an optical attenuation at a wavelength of about 1383 nm which is less than or equal to an optical attenuation exhibited at a wavelength of about 1310 nm.
Claims21
A method of fabricating a preform for use in manufacturing optical waveguide fiber, the method comprising the steps of:
- depositing soot onto a substrate to form a soot body thereon, the soot body having opposing first and second ends;
- removing the substrate from the soot body, thereby forming a centerline hole extending axially through the soot body from the first end to the second end of the soot body, the centerline hole having two opposing ends disposed at the first and second ends of the soot body, respectively;
- inserting a first glass body into the centerline hole at the first end of the soot body, the first glass body comprising deuterated glass, and inserting a second glass body into the centerline hole at the second end of the soot body;
- drying the soot body;
- and
- consolidating the soot body to form a glass preform.
The method of clam 9 wherein the overcladding step further comprises depositing soot onto the glass preform.
A method of fabricating a preform for use in manufacturing optical waveguide fiber, the method comprising the steps of:
- depositing soot onto a substrate and onto a tubular glass body to form a soot body thereon, the soot body having opposing first and second ends;
- removing the substrate from the soot body, thereby forming a centerline hole extending axially through the soot body from the first end to the second end of the soot body, the centerline hole having two opposing ends disposed at the first and second ends of the soot body, respectively;
- inserting a first glass body into the centerline hole at the first end of the soot body and inserting a second glass body into the centerline hole at the second end of the soot body;
- drying the soot body;
- and
- consolidating the soot body to form a glass preform;
- wherein at least one member of the group consisting of the tubular glass body, the first glass body, and the second glass body comprises deuterated glass.
Dependencies are inferred from the claim text.