Composite optical waveguide fiber
AssigneeCorning Incorporated
InventorDouglas C. Allan
Life of this patent
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Abstract
The present invention includes a composite optical waveguide fiber. The composite optical waveguide fiber includes a first optical waveguide fiber. The first optical waveguide fiber has a first diameter and a first outermost layer having a first coefficient of thermal expansion. The composite optical waveguide fiber further includes a second optical waveguide fiber coupled to the first optical waveguide fiber. The second optical waveguide fiber has a second diameter and a second outermost layer, the second outermost layer having a second coefficient of thermal expansion. Wherein the first coefficient of thermal expansion is greater than the second coefficient of thermal expansion. Wherein the first diameter is greater than the second diameter.
Claims23
An optical fiber device comprising:
- a cylindrical glass body having:
- a first coefficient of thermal expansion;
- a first diameter;
- and
- a first end;
- an optical waveguide fiber having:
- a second coefficient of thermal expansion;
- a second diameter;
- and
- a second end fusion spliced to said first end;
- wherein said first diameter is greater than said second diameter;
- wherein said first coefficient of thermal expansion is greater than said second coefficient of thermal expansion;
- and
- wherein said cylindrical glass body is substantially coaxial with at least a longitudinally extending end portion of said optical waveguide fiber.
A composite optical waveguide fiber comprising:
- a first optical waveguide fiber, having a first diameter and a first outermost layer having a first coefficient of thermal expansion;
- and
- a second optical waveguide fiber coupled to said first optical waveguide fiber, said second optical waveguide fiber having a second diameter and a second outermost layer, said second outermost layer having a second coefficient of thermal expansion and;
- wherein said first coefficient of thermal expansion is greater than said second coefficient of thermal expansion;
- and
- wherein said first diameter is greater than said second diameter.
A reduced stress optical waveguide fiber splice comprising:
- a first optical waveguide fiber, having:
- a first outer layer, said first outer layer having a first coefficient of thermal expansion;
- a first diameter;
- a first light guiding core region;
- and
- a first end;
- a second optical waveguide fiber, having:
- a second outer layer, said second outer layer having a second coefficient of thermal expansion;
- a second diameter;
- a second light guiding core region;
- and
- a second end fusion spliced to said first end;
- wherein said first diameter is greater than said second diameter;
- wherein said first coefficient of thermal expansion is greater than said second coefficient of thermal expansion;
- and
- wherein said first light guiding core region and said second light guiding core region are substantially aligned with one another.
Dependencies are inferred from the claim text.