Method for producing optical fiber with laser stripping step, and optical fiber thereof
AssigneeSumitomo Electric Industries, Ltd.
InventorsHiroshi Kohda, Suguru Takasaki
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Abstract
A method for manufacturing an optical fiber, the method including: a stripping step of partially stripping a coating layer 12, 13 of the optical fiber 10; a splicing step of fusion-splicing an exposed end surface of a glass fiber 11; and a recoating step of recoating a protective resin 15 covering a stripped portion of the coating layer 12, 13 and an exposed portion of the glass fiber 11, in which the stripping step irradiates the coating layer 12, 13 with a laser light to strip the coating layer 12, 13. A pulse width of the laser light is 50 fs or more and 500 ps or less.
Claims10
A method for manufacturing an optical fiber, the method comprising:
- a stripping step of partially stripping a coating layer of the optical fiber;
- a splicing step of fusion-splicing an exposed end surface of a glass fiber;
- and
- a recoating step of recoating a protective resin covering a stripped portion of the coating layer and an exposed portion of the glass fiber,
- wherein the stripping step is a step of irradiating the coating layer with a laser light to strip the coating layer, and
- wherein a pulse width of the laser light is 15 ps or more and 500 ps or less.
A method for manufacturing an optical fiber, the method comprising:
- a stripping step of partially stripping a coating layer of the optical fiber;
- a splicing step of fusion-splicing an exposed end surface of a glass fiber;
- and
- a recoating step of recoating a protective resin covering a stripped portion of the coating layer and an exposed portion of the glass fiber,
- wherein the stripping step is a step of irradiating the coating layer with a laser light to strip the coating layer,
- wherein a pulse width of the laser light is 50 fs or more and 500 ps or less,
- wherein the stripping step is a step of processing an end portion of the coating layer into a tapered shape whose diameter is reduced toward the exposed portion of the glass fiber, and
- wherein the stripping step is a step of rotating the optical fiber about an axis of the optical fiber and irradiating the optical fiber with the laser light by scanning only a predetermined area with the laser light in a direction perpendicular to an irradiation direction of the laser light and oblique to a longitudinal direction of the fiber.
A method for manufacturing an optical fiber, the method comprising:
- a stripping step of partially stripping a coating layer of the optical fiber;
- an exposing step of exposing a glass fiber by extracting the coating layer of the optical fiber on one side from a portion where the coating layer is partially stripped, after the stripping step;
- a splicing step of fusion-splicing an exposed end surface of a glass fiber;
- and
- a recoating step of recoating a protective resin covering a stripped portion of the coating layer and an exposed portion of the glass fiber,
- wherein the stripping step is a step of irradiating the coating layer with a laser light to strip the coating layer, and
- wherein a pulse width of the laser light is 50 fs or more and 500 ps or less.
Dependencies are inferred from the claim text.