Hollow-core optical fibers and methods for producing the same
AssigneeCorning Incorporated
InventorsPaulo Clovis Dainese, Jr., Wei Jiang, Ming-Jun Li, Xiaojun Liang, Dan Trung Nguyen, Ilia Andreyevich Nikulin
Life of this patent
Estimating the term…
Abstract
A method for producing a hollow-core preform may include rolling a glass sheet to form a rolled-glass structure; and attaching one or more of the rolled-glass structures to an inner surface of an annular support structure to form a hollow-core preform, wherein the inner surface of the annular support structure defines an interior cavity and the one or more of the rolled-glass structures are positioned within the interior cavity. The hollow-core preform may be drawn into a hollow-core optical fiber.
Claims19
A method for producing a hollow-core preform, the method comprising:
- rolling a glass sheet to form a rolled-glass structure;
- and
- attaching one or more rolled-glass structures to an inner surface of an annular support structure to form a hollow-core preform, wherein the inner surface of the annular support structure defines an interior cavity and the one or more of the rolled-glass structures are positioned within the interior cavity, wherein the rolled-glass structure comprises greater than or equal to 2 and less than or equal to 15 turns, and a space between each turn of the rolled-glass structure is occupied by a gas.
A method of forming a hollow-core optical fiber, the method comprising:
- drawing an optical fiber from a hollow-core optical fiber preform, the hollow-core optical fiber preform comprising:
- an annular support structure having an inner surface defining an interior cavity;
- and
- one or more rolled-glass structures attached to the inner surface and positioned within the interior cavity, each of the one or more rolled-glass structures comprising a plurality of turns, wherein a space between each turn of the one or more rolled-glass structures is occupied by a gas.
A hollow-core optical fiber comprising:
- a substrate, the substrate comprising a tubular shape and an inner surface surrounding a central longitudinal axis of the hollow-core optical fiber;
- a hollow core extending through the substrate along the central longitudinal axis of the hollow-core optical fiber;
- and
- a cladding positioned between the central longitudinal axis of the hollow-core optical fiber and the substrate, the cladding comprising a rolled-glass cladding element circumscribing the central longitudinal axis, wherein the rolled-glass cladding element comprises a plurality of turns around the central longitudinal axis and a space between each turn of the rolled-glass cladding element is occupied by a gas.
Dependencies are inferred from the claim text.