Back to results
US 2024/0402416 A1Published application
Hollow core fiber with passivation protected ends
AssigneeHoneywell International Inc.
InventorsTeresa Marta, Karl D. Nelson
Life of this patent
Estimating the term…
Abstract
A hollow core fiber is provided. The hollow core fiber includes at least one cleaved fiber end-face and a dielectric coating. The dielectric coating is formed by a passivation layer of dielectric that is applied to the at least one cleaved fiber end-face such that a portion of an interior surface that defines a hollow core of the hollow core fiber adjacent to the at least one cleaved fiber end-face is coated with the dielectric coating.
Claims20
A hollow core fiber comprising:
- at least one cleaved fiber end-face;
- and
- a dielectric coating formed by a passivation layer of dielectric applied to the at least one cleaved fiber end-face such that a portion of an interior surface that defines a hollow core of the hollow core fiber adjacent to the at least one cleaved fiber end-face is coated with the dielectric coating.
A hollow core fiber:
- at least one cleaved fiber end-face;
- and
- a dielectric coating formed with a passivation layer of dielectric applied to the at least one cleaved fiber end-face with a chemical vapor deposition system such that a portion of an interior surface that defines a hollow core of the hollow core fiber adjacent the at least one cleaved fiber end-face is coated with the dielectric coating, wherein a depth of the portion of the interior surface that defines the hollow core of the hollow core fiber that is adjacent to the at least one cleaved fiber end-face with the dielectric coating is a depth in which air can diffuse within the hollow core.
A method of forming a passivation layer on a cleaved fiber end-face of a hollow core fiber, the method comprising:
- placing at least one cleaved fiber end-face of a hollow core fiber in a chemical vapor deposition chamber;
- heating material to a thermal decomposition temperature to create a gaseous compound;
- and
- directing a flow of the gaseous compound across the at least one cleaved fiber end-face of the hollow core fiber to deposit a passivation layer of dielectric on the at least one cleaved fiber end-face to form a dielectric coating, wherein the dielectric coating extends into a hollow core portion of the hollow core fiber adjacent to the at least one cleaved fiber end-face.
1 more element
Dependencies are inferred from the claim text.