Coupling element for coupling light into and out of an optical fiber
AssigneeSiemens Aktiengesellschaft
InventorGerhard Winzer
Life of this patent
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Abstract
A coupling element is composed of a thick core fiber having an end formed by a first and second end surface with the first end surface extending substantially perpendicular to the axis of the fiber and the second end surface, which has a highly reflective mirror layer being inclined to the first end surface and to the axis. A second fiber, which is thinner than the first fiber, is coupled by a butt-joint to the first end surface and a third fiber which is also a thick core fiber branches off obliquely from the side of the first fiber adjacent the end.
Claims11
A coupling element for coupling light into and out of a first optical fiber, said element comprising a first optical fiber with a first axis and having an end being formed by a first end surface and a second end surface inclined at an angle relative to one another, said first end surface extending essentially perpendicular to the first axis of said first optical fiber and said second end surface being inclined relative to said first axis and having a reflective layer, a second optical fiber having a second axis and being coupled to said first end surface with the second axis being parallel to the first axis and offset therefrom, and a third optical fiber branching laterally from the first optical fiber adjacent said end, the diameter of the light conducting area of the second optical fiber being smaller than the diameter of the light conducting area of each of the first optical fiber and the third optical fiber.
A coupling element for coupling light into and out of a first optical fiber, said element comprising a first optical fiber having an end being formed by a first end surface and a second end surface inclined at an angle relative to one another, said first end surface extending essentially perpendicular to the axis of said first optical fiber and said second end surface being inclined relative to said axis and having a reflective layer;
- a second optical fiber being coupled to said first end surface;
- and a third optical fiber branching laterally from the first optical fiber adjacent said end, the diameter of the light conducting area of the second optical fiber being smaller than the diameter of the light conducting area of each of the first optical fiber and the third optical fiber, and the light conducting area of the second optical fiber being approximately the same as the light conducting area of the first end surface.
Dependencies are inferred from the claim text.